From bd959fd35ce5514716a38638141f90acb5e55d96 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Mon, 9 Feb 2026 19:29:41 +0000 Subject: [PATCH 01/14] feat: add @stdlib/stats/strided/snanstdev --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: passed - task: lint_package_json status: passed - task: lint_repl_help status: passed - task: lint_javascript_src status: passed - task: lint_javascript_cli status: na - task: lint_javascript_examples status: passed - task: lint_javascript_tests status: passed - task: lint_javascript_benchmarks status: passed - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: missing_dependencies - task: lint_c_benchmarks status: missing_dependencies - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: passed - task: lint_license_headers status: passed --- --- .../@stdlib/stats/strided/snanstdev/README.md | 419 ++++++++++++++++++ .../strided/snanstdev/benchmark/benchmark.js | 106 +++++ .../snanstdev/benchmark/benchmark.native.js | 65 +++ .../snanstdev/benchmark/benchmark.ndarray.js | 56 +++ .../benchmark/benchmark.ndarray.native.js | 65 +++ .../strided/snanstdev/benchmark/c/Makefile | 146 ++++++ .../snanstdev/benchmark/c/benchmark.length.c | 157 +++++++ .../stats/strided/snanstdev/binding.gyp | 170 +++++++ ...on_corrected_sample_standard_deviation.svg | 73 +++ .../docs/img/equation_population_mean.svg | 42 ++ ...equation_population_standard_deviation.svg | 66 +++ .../docs/img/equation_sample_mean.svg | 43 ++ .../stats/strided/snanstdev/docs/repl.txt | 120 +++++ .../strided/snanstdev/docs/types/index.d.ts | 95 ++++ .../strided/snanstdev/docs/types/test.ts | 187 ++++++++ .../strided/snanstdev/examples/c/Makefile | 146 ++++++ .../strided/snanstdev/examples/c/example.c | 37 ++ .../stats/strided/snanstdev/examples/index.js | 46 ++ .../stats/strided/snanstdev/include.gypi | 53 +++ .../include/stdlib/stats/strided/snanstdev.h | 45 ++ .../stats/strided/snanstdev/lib/index.js | 68 +++ .../stats/strided/snanstdev/lib/main.js | 35 ++ .../stats/strided/snanstdev/lib/native.js | 53 +++ .../stats/strided/snanstdev/lib/ndarray.js | 53 +++ .../strided/snanstdev/lib/ndarray.native.js | 54 +++ .../stats/strided/snanstdev/lib/snanstdev.js | 52 +++ .../strided/snanstdev/lib/snanstdev.native.js | 53 +++ .../stats/strided/snanstdev/manifest.json | 100 +++++ .../stats/strided/snanstdev/package.json | 86 ++++ .../stats/strided/snanstdev/src/Makefile | 70 +++ .../stats/strided/snanstdev/src/addon.c | 44 ++ .../stats/strided/snanstdev/src/main.c | 48 ++ .../stats/strided/snanstdev/test/test.js | 97 ++++ .../strided/snanstdev/test/test.ndarray.js | 158 +++++++ .../snanstdev/test/test.ndarray.native.js | 155 +++++++ .../strided/snanstdev/test/test.snanstdev.js | 228 ++++++++++ .../snanstdev/test/test.snanstdev.native.js | 168 +++++++ 37 files changed, 3659 insertions(+) create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/README.md create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_corrected_sample_standard_deviation.svg create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_mean.svg create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_standard_deviation.svg create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_sample_mean.svg create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/docs/repl.txt create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/include/stdlib/stats/strided/snanstdev.h create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/lib/index.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/lib/main.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/lib/native.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.native.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.native.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/manifest.json create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/package.json create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js create mode 100644 lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/README.md b/lib/node_modules/@stdlib/stats/strided/snanstdev/README.md new file mode 100644 index 000000000000..29a892e64ad7 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/README.md @@ -0,0 +1,419 @@ + + +# snanstdev + +> Calculate the [standard deviation][standard-deviation] of a single-precision floating-point strided array, ignoring `NaN` values. + +
+ +The population [standard deviation][standard-deviation] of a finite size population of size `N` is given by + + + +```math +\sigma = \sqrt{\frac{1}{N} \sum_{i=0}^{N-1} (x_i - \mu)^2} +``` + + + + + +where the population mean is given by + + + +```math +\mu = \frac{1}{N} \sum_{i=0}^{N-1} x_i +``` + + + + + +Often in the analysis of data, the true population [standard deviation][standard-deviation] is not known _a priori_ and must be estimated from a sample drawn from the population distribution. If one attempts to use the formula for the population [standard deviation][standard-deviation], the result is biased and yields an **uncorrected sample standard deviation**. To compute a **corrected sample standard deviation** for a sample of size `n`, + + + +```math +s = \sqrt{\frac{1}{n-1} \sum_{i=0}^{n-1} (x_i - \bar{x})^2} +``` + + + + + +where the sample mean is given by + + + +```math +\bar{x} = \frac{1}{n} \sum_{i=0}^{n-1} x_i +``` + + + + + +The use of the term `n-1` is commonly referred to as Bessel's correction. Note, however, that applying Bessel's correction can increase the mean squared error between the sample standard deviation and population standard deviation. Depending on the characteristics of the population distribution, other correction factors (e.g., `n-1.5`, `n+1`, etc) can yield better estimators. + +
+ + + +
+ +## Usage + +```javascript +var snanstdev = require( '@stdlib/stats/strided/snanstdev' ); +``` + +#### snanstdev( N, correction, x, strideX ) + +Computes the [standard deviation][standard-deviation] of a single-precision floating-point strided array, ignoring `NaN` values. + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array([ + 1.0, 2.0, 2.0, -7.0, -2.0, 3.0, 4.0, 2.0, NaN, NaN +]); + +var v = snanstdev( 5, 1, x, 2 ); +// returns 2.5 +``` + +The function has the following parameters: + +- **N**: number of indexed elements. +- **correction**: degrees of freedom adjustment. Setting this parameter to a value other than `0` has the effect of adjusting the divisor during the calculation of the [standard deviation][standard-deviation] according to `n-c` where `c` corresponds to the provided degrees of freedom adjustment and `n` corresponds to the number of non-`NaN` indexed elements. When computing the [standard deviation][standard-deviation] of a population, setting this parameter to `0` is the standard choice (i.e., the provided array contains data constituting an entire population). When computing the corrected sample [standard deviation][standard-deviation], setting this parameter to `1` is the standard choice (i.e., the provided array contains data sampled from a larger population; this is commonly referred to as Bessel's correction). +- **x**: input [`Float32Array`][@stdlib/array/float32]. +- **strideX**: stride length for `x`. + +The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to compute the [standard deviation][standard-deviation] of every other element in `x`, + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array([ + 1.0, 2.0, 2.0, -7.0, -2.0, 3.0, 4.0, 2.0, NaN, NaN +]); + +var v = snanstdev( 5, 1, x, 2 ); +// returns 2.5 +``` + +Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views. + + + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x0 = new Float32Array([ + 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0, NaN, NaN +]); +var x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); + +var v = snanstdev( 4, 1, x1, 2 ); +// returns 2.5 +``` + +#### snanstdev.ndarray( N, correction, x, strideX, offsetX ) + +Computes the [standard deviation][standard-deviation] of a single-precision floating-point strided array, ignoring `NaN` values and using alternative indexing semantics. + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array( [ 1.0, -2.0, NaN, 2.0 ] ); + +var v = snanstdev.ndarray( x.length, 1, x, 1, 0 ); +// returns ~2.0817 +``` + +The function has the following additional parameters: + +- **offsetX**: starting index for `x`. + +While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to calculate the [standard deviation][standard-deviation] for every other element in `x` starting from the second element + +```javascript +var Float32Array = require( '@stdlib/array/float32' ); + +var x = new Float32Array([ + 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0, NaN, NaN +]); + +var v = snanstdev.ndarray( 4, 1, x, 2, 1 ); +// returns 2.5 +``` + +
+ + + +
+ +## Notes + +- If `N <= 0`, both functions return `NaN`. +- If `n - c` is less than or equal to `0` (where `c` corresponds to the provided degrees of freedom adjustment and `n` corresponds to the number of non-`NaN` indexed elements), both functions return `NaN`. +- Depending on the environment, the typed versions ([`dnanstdev`][@stdlib/stats/base/dnanstdev], [`snanstdev`][@stdlib/stats/base/snanstdev], etc.) are likely to be significantly more performant. + +
+ + + +
+ +## Examples + + + +```javascript +var discreteUniform = require( '@stdlib/random/array/discrete-uniform' ); +var bernoulli = require( '@stdlib/random/array/bernoulli' ); +var Float32Array = require( '@stdlib/array/float32' ); +var snanstdev = require( '@stdlib/stats/strided/snanstdev' ); + +var x = discreteUniform( 10, -50, 50, { + 'dtype': 'float32' +}); +console.log( x ); + +// Create a boolean mask: +var mask = bernoulli( x.length, 0.2, { + 'dtype': 'generic' +}); +console.log( mask ); + +// Randomly set values to NaN: +var i; +for ( i = 0; i < x.length; i++ ) { + if ( mask[ i ] ) { + x[ i ] = NaN; + } +} +console.log( x ); + +var v = snanstdev( x.length, 1, x, 1 ); +console.log( v ); +``` + +
+ + + + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/stats/strided/snanstdev.h" +``` + +#### stdlib_strided_snanstdev( N, correction, \*X, strideX ) + +Computes the [standard deviation][standard-deviation] of a single-precision floating-point strided array, ignoring `NaN` values. + +```c +const float x[] = { 1.0f, 2.0f, 0.0f/0.0f, 4.0f }; + +float v = stdlib_strided_snanstdev( 4, 1.0f, x, 1 ); +// returns ~1.5275 +``` + +The function accepts the following arguments: + +- **N**: `[in] CBLAS_INT` number of indexed elements. +- **correction**: `[in] float` degrees of freedom adjustment. Setting this parameter to a value other than `0` has the effect of adjusting the divisor during the calculation of the [standard deviation][standard-deviation] according to `n-c` where `c` corresponds to the provided degrees of freedom adjustment and `n` corresponds to the number of non-`NaN` indexed elements. When computing the [standard deviation][standard-deviation] of a population, setting this parameter to `0` is the standard choice (i.e., the provided array contains data constituting an entire population). When computing the corrected sample [standard deviation][standard-deviation], setting this parameter to `1` is the standard choice (i.e., the provided array contains data sampled from a larger population; this is commonly referred to as Bessel's correction). +- **X**: `[in] float*` input array. +- **strideX**: `[in] CBLAS_INT` stride length for `X`. + +```c +float stdlib_strided_snanstdev( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX ); +``` + +#### stdlib_strided_snanstdev_ndarray( N, correction, \*X, strideX, offsetX ) + +Computes the [standard deviation][standard-deviation] of a single-precision floating-point strided array, ignoring `NaN` values and using alternative indexing semantics. + +```c +const float x[] = { 1.0f, 2.0f, 0.0f/0.0f, 4.0f }; + +float v = stdlib_strided_snanstdev_ndarray( 4, 1.0f, x, 1, 0 ); +// returns ~1.5275 +``` + +The function accepts the following arguments: + +- **N**: `[in] CBLAS_INT` number of indexed elements. +- **correction**: `[in] float` degrees of freedom adjustment. Setting this parameter to a value other than `0` has the effect of adjusting the divisor during the calculation of the [standard deviation][standard-deviation] according to `n-c` where `c` corresponds to the provided degrees of freedom adjustment and `n` corresponds to the number of non-`NaN` indexed elements. When computing the [standard deviation][standard-deviation] of a population, setting this parameter to `0` is the standard choice (i.e., the provided array contains data constituting an entire population). When computing the corrected sample [standard deviation][standard-deviation], setting this parameter to `1` is the standard choice (i.e., the provided array contains data sampled from a larger population; this is commonly referred to as Bessel's correction). +- **X**: `[in] float*` input array. +- **strideX**: `[in] CBLAS_INT` stride length for `X`. +- **offsetX**: `[in] CBLAS_INT` starting index for `X`. + +```c +float stdlib_strided_snanstdev_ndarray( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/stats/strided/snanstdev.h" +#include + +int main( void ) { + // Create a strided array: + const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 0.0f/0.0f, 6.0f, 7.0f, 8.0f }; + + // Specify the number of elements: + const int N = 8; + + // Specify the stride length: + const int strideX = 1; + + // Compute the standard deviation: + float v = stdlib_strided_snanstdev( N, 1.0f, x, strideX ); + + // Print the result: + printf( "sample standard deviation: %f\n", v ); +} +``` + +
+ + + +
+ + + +
+ +* * * + +## References + +- Neely, Peter M. 1966. "Comparison of Several Algorithms for Computation of Means, Standard Deviations and Correlation Coefficients." _Communications of the ACM_ 9 (7). Association for Computing Machinery: 496–99. doi:[10.1145/365719.365958][@neely:1966a]. +- Schubert, Erich, and Michael Gertz. 2018. "Numerically Stable Parallel Computation of (Co-)Variance." In _Proceedings of the 30th International Conference on Scientific and Statistical Database Management_. New York, NY, USA: Association for Computing Machinery. doi:[10.1145/3221269.3223036][@schubert:2018a]. + +
+ + + + + +
+ +* * * + +## See Also + +- [`@stdlib/stats/strided/dnanstdev`][@stdlib/stats/strided/dnanstdev]: calculate the standard deviation of a double-precision floating-point strided array ignoring NaN values. +- [`@stdlib/stats/strided/sstdev`][@stdlib/stats/strided/sstdev]: calculate the standard deviation of a single-precision floating-point strided array. +- [`@stdlib/stats/strided/snanvariance`][@stdlib/stats/strided/snanvariance]: calculate the variance of a single-precision floating-point strided array ignoring NaN values. +- [`@stdlib/stats/strided/nanstdev`][@stdlib/stats/strided/nanstdev]: calculate the standard deviation of a strided array ignoring NaN values. + +
+ + + + + +
+ +[standard-deviation]: https://en.wikipedia.org/wiki/Standard_deviation + +[@stdlib/array/float32]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/float32 + +[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray + +[@neely:1966a]: https://doi.org/10.1145/365719.365958 + +[@schubert:2018a]: https://doi.org/10.1145/3221269.3223036 + + + +[@stdlib/stats/strided/dnanstdev]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/dnanstdev + +[@stdlib/stats/strided/sstdev]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/sstdev + +[@stdlib/stats/strided/snanvariance]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/snanvariance + +[@stdlib/stats/strided/nanstdev]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/nanstdev + +[@stdlib/stats/base/dnanstdev]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/dnanstdev + +[@stdlib/stats/base/snanstdev]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/snanstdev + + + +
+ + diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js new file mode 100644 index 000000000000..30e28eaee188 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js @@ -0,0 +1,106 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var bench = require( '@stdlib/bench' ); +var uniform = require( '@stdlib/random/array/uniform' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; +var snanstdev = require( './../lib/main.js' ); + + +// MAIN // + +bench( pkg, function benchmark( b ) { + var x; + var v; + var i; + + x = uniform( 10, -10.0, 10.0, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + x[ 0 ] = i; + v = snanstdev( x.length, 1, x, 1 ); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); + +bench( format( '%s::population', pkg ), function benchmark( b ) { + var x; + var v; + var i; + + x = uniform( 10, -10.0, 10.0, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + x[ 0 ] = i; + v = snanstdev( x.length, 0, x, 1 ); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); + +bench( format( '%s::sample', pkg ), function benchmark( b ) { + var x; + var v; + var i; + + x = uniform( 10, -10.0, 10.0, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + x[ 0 ] = i; + v = snanstdev( x.length, 1, x, 1 ); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js new file mode 100644 index 000000000000..ca133b82ccea --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js @@ -0,0 +1,65 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var bench = require( '@stdlib/bench' ); +var uniform = require( '@stdlib/random/array/uniform' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var format = require( '@stdlib/string/format' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var snanstdev = tryRequire( resolve( __dirname, './../lib/snanstdev.native.js' ) ); +var opts = { + 'skip': ( snanstdev instanceof Error ) +}; + + +// MAIN // + +bench( format( '%s::native', pkg ), opts, function benchmark( b ) { + var x; + var v; + var i; + + x = uniform( 10, -10.0, 10.0, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + x[ 0 ] = i; + v = snanstdev( x.length, 1, x, 1 ); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js new file mode 100644 index 000000000000..28ed827ea49c --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js @@ -0,0 +1,56 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var bench = require( '@stdlib/bench' ); +var uniform = require( '@stdlib/random/array/uniform' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var format = require( '@stdlib/string/format' ); +var pkg = require( './../package.json' ).name; +var snanstdev = require( './../lib/ndarray.js' ); + + +// MAIN // + +bench( format( '%s::ndarray', pkg ), function benchmark( b ) { + var x; + var v; + var i; + + x = uniform( 10, -10.0, 10.0, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + x[ 0 ] = i; + v = snanstdev( x.length, 1, x, 1, 0 ); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js new file mode 100644 index 000000000000..901add95dfba --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js @@ -0,0 +1,65 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var bench = require( '@stdlib/bench' ); +var uniform = require( '@stdlib/random/array/uniform' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var format = require( '@stdlib/string/format' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var snanstdev = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) ); +var opts = { + 'skip': ( snanstdev instanceof Error ) +}; + + +// MAIN // + +bench( format( '%s::ndarray:native', pkg ), opts, function benchmark( b ) { + var x; + var v; + var i; + + x = uniform( 10, -10.0, 10.0, { + 'dtype': 'float32' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + x[ 0 ] = i; + v = snanstdev( x.length, 1, x, 1, 0 ); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnan( v ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile new file mode 100644 index 000000000000..7280962b4c4d --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2020 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := benchmark.length.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled benchmarks. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c new file mode 100644 index 000000000000..b85d8173d228 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c @@ -0,0 +1,157 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/stats/strided/snanstdev.h" +#include +#include +#include +#include +#include + +#define NAME "snanstdev" +#define ITERATIONS 1000000 +#define REPEATS 3 + +/** +* Prints the TAP version. +*/ +static void print_version( void ) { + printf( "TAP version 13\n" ); +} + +/** +* Prints the TAP summary. +* +* @param total total number of tests +* @param passing total number of passing tests +*/ +static void print_summary( int total, int passing ) { + printf( "#\n" ); + printf( "1..%d\n", total ); // TAP plan + printf( "# total %d\n", total ); + printf( "# pass %d\n", passing ); + printf( "#\n" ); + printf( "# ok\n" ); +} + +/** +* Prints benchmarks results. +* +* @param elapsed elapsed time in seconds +*/ +static void print_results( double elapsed ) { + double rate = (double)ITERATIONS / elapsed; + printf( " ---\n" ); + printf( " iterations: %d\n", ITERATIONS ); + printf( " elapsed: %0.9f\n", elapsed ); + printf( " rate: %0.9f\n", rate ); + printf( " ...\n" ); +} + +/** +* Returns a clock time. +* +* @return clock time +*/ +static double tic( void ) { + struct timeval now; + gettimeofday( &now, NULL ); + return (double)now.tv_sec + (double)now.tv_usec/1.0e6; +} + +/** +* Generates a random number on the interval [0,1]. +* +* @return random number +*/ +static float rand_float( void ) { + int r = rand(); + return (float)r / ( (float)RAND_MAX + 1.0f ); +} + +/** +* Runs a benchmark. +* +* @param len array length +* @return elapsed time in seconds +*/ +static double benchmark( int len ) { + double elapsed; + float x[ len ]; + double t; + float v; + int i; + + for ( i = 0; i < len; i++ ) { + if ( rand_float() < 0.2 ) { + x[ i ] = 0.0f / 0.0f; // NaN + } else { + x[ i ] = ( rand_float() * 200.0f ) - 100.0f; + } + } + t = tic(); + for ( i = 0; i < ITERATIONS; i++ ) { + v = stdlib_strided_snanstdev( len, 1.0f, x, 1 ); + if ( v != v ) { + printf( "unexpected result\n" ); + break; + } + } + elapsed = tic() - t; + if ( v != v ) { + printf( "unexpected result\n" ); + } + return elapsed; +} + +/** +* Main execution sequence. +*/ +int main( void ) { + double elapsed; + int count; + int len; + int min; + int max; + int f; + int i; + int j; + + // Use the current time to seed the random number generator: + srand( time( NULL ) ); + + print_version(); + count = 0; + + // Benchmark various array lengths: + min = 1; + max = 6; + for ( i = min; i <= max; i++ ) { + len = pow( 10, i ); + elapsed = 0.0; + for ( j = 0; j < REPEATS; j++ ) { + count += 1; + printf( "# c::%s:len=%d\n", NAME, len ); + elapsed += benchmark( len ); + printf( "ok %d benchmark finished\n", count ); + } + elapsed /= (double)REPEATS; + print_results( elapsed ); + } + print_summary( count, count ); +} diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp b/lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp new file mode 100644 index 000000000000..7d0005b2e390 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp @@ -0,0 +1,170 @@ +# @license Apache-2.0 +# +# Copyright (c) 2020 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# A `.gyp` file for building a Node.js native add-on. +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # List of files to include in this file: + 'includes': [ + './include.gypi', + ], + + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Target name should match the add-on export name: + 'addon_target_name%': 'addon', + + # Set variables based on the host OS: + 'conditions': [ + [ + 'OS=="win"', + { + # Define the object file suffix: + 'obj': 'obj', + }, + { + # Define the object file suffix: + 'obj': 'o', + } + ], # end condition (OS=="win") + ], # end conditions + }, # end variables + + # Define compile targets: + 'targets': [ + + # Target to generate an add-on: + { + # The target name should match the add-on export name: + 'target_name': '<(addon_target_name)', + + # Define dependencies: + 'dependencies': [], + + # Define directories which contain relevant include headers: + 'include_dirs': [ + # Local include directory: + '<@(include_dirs)', + ], + + # List of source files: + 'sources': [ + '<@(src_files)', + ], + + # Settings which should be applied when a target's object files are used as linker input: + 'link_settings': { + # Define libraries: + 'libraries': [ + '<@(libraries)', + ], + + # Define library directories: + 'library_dirs': [ + '<@(library_dirs)', + ], + }, + + # C/C++ compiler flags: + 'cflags': [ + # Enable commonly used warning options: + '-Wall', + + # Aggressive optimization: + '-O3', + ], + + # C specific compiler flags: + 'cflags_c': [ + # Specify the C standard to which a program is expected to conform: + '-std=c99', + ], + + # C++ specific compiler flags: + 'cflags_cpp': [ + # Specify the C++ standard to which a program is expected to conform: + '-std=c++11', + ], + + # Linker flags: + 'ldflags': [], + + # Apply conditions based on the host OS: + 'conditions': [ + [ + 'OS=="mac"', + { + # Linker flags: + 'ldflags': [ + '-undefined dynamic_lookup', + '-Wl,-no-pie', + '-Wl,-search_paths_first', + ], + }, + ], # end condition (OS=="mac") + [ + 'OS!="win"', + { + # C/C++ flags: + 'cflags': [ + # Generate platform-independent code: + '-fPIC', + ], + }, + ], # end condition (OS!="win") + ], # end conditions + }, # end target <(addon_target_name) + + # Target to copy a generated add-on to a standard location: + { + 'target_name': 'copy_addon', + + # Declare that the output of this target is not linked: + 'type': 'none', + + # Define dependencies: + 'dependencies': [ + # Require that the add-on be generated before building this target: + '<(addon_target_name)', + ], + + # Define a list of actions: + 'actions': [ + { + 'action_name': 'copy_addon', + 'message': 'Copying addon...', + + # Explicitly list the inputs in the command-line invocation below: + 'inputs': [], + + # Declare the expected outputs: + 'outputs': [ + '<(addon_output_dir)/<(addon_target_name).node', + ], + + # Define the command-line invocation: + 'action': [ + 'cp', + '<(PRODUCT_DIR)/<(addon_target_name).node', + '<(addon_output_dir)/<(addon_target_name).node', + ], + }, + ], # end actions + }, # end target copy_addon + ], # end targets +} diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_corrected_sample_standard_deviation.svg b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_corrected_sample_standard_deviation.svg new file mode 100644 index 000000000000..6af85c9d5732 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_corrected_sample_standard_deviation.svg @@ -0,0 +1,73 @@ + +s equals StartRoot StartFraction 1 Over n minus 1 EndFraction sigma-summation Underscript i equals 0 Overscript n minus 1 Endscripts left-parenthesis x Subscript i Baseline minus x overbar right-parenthesis squared EndRoot + + + \ No newline at end of file diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_mean.svg b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_mean.svg new file mode 100644 index 000000000000..4bbdf0d2a56f --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_mean.svg @@ -0,0 +1,42 @@ + +mu equals StartFraction 1 Over upper N EndFraction sigma-summation Underscript i equals 0 Overscript upper N minus 1 Endscripts x Subscript i + + + \ No newline at end of file diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_standard_deviation.svg b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_standard_deviation.svg new file mode 100644 index 000000000000..ad431efeff2a --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_population_standard_deviation.svg @@ -0,0 +1,66 @@ + +sigma equals StartRoot StartFraction 1 Over upper N EndFraction sigma-summation Underscript i equals 0 Overscript upper N minus 1 Endscripts left-parenthesis x Subscript i Baseline minus mu right-parenthesis squared EndRoot + + + \ No newline at end of file diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_sample_mean.svg b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_sample_mean.svg new file mode 100644 index 000000000000..aea7a5f6687a --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/img/equation_sample_mean.svg @@ -0,0 +1,43 @@ + +x overbar equals StartFraction 1 Over n EndFraction sigma-summation Underscript i equals 0 Overscript n minus 1 Endscripts x Subscript i + + + \ No newline at end of file diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/repl.txt b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/repl.txt new file mode 100644 index 000000000000..7788585242e1 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/repl.txt @@ -0,0 +1,120 @@ + +{{alias}}( N, correction, x, strideX ) + Computes the standard deviation of a single-precision floating-point + strided array ignoring NaN values. + + The `N` and stride parameters determine which elements are accessed at + runtime. + + Indexing is relative to the first index. To introduce an offset, use a + typed array view. + + If `N <= 0`, the function returns `NaN`. + + If `n - c` is less than or equal to `0` (where `c` corresponds to the + provided degrees of freedom adjustment and `n` corresponds to the number of + non-NaN indexed elements), the function returns `NaN`. + + Parameters + ---------- + N: integer + Number of indexed elements. + + correction: number + Degrees of freedom adjustment. Setting this parameter to a value other + than `0` has the effect of adjusting the divisor during the calculation + of the standard deviation according to `n-c` where `c` corresponds to + the provided degrees of freedom adjustment and `n` corresponds to the + number of non-NaN indexed elements. When computing the standard + deviation of a population, setting this parameter to `0` is the + standard choice (i.e., the provided array contains data constituting an + entire population). When computing the corrected sample standard + deviation, setting this parameter to `1` is the standard choice (i.e., + the provided array contains data sampled from a larger population; this + is commonly referred to as Bessel's correction). + + x: Float32Array + Input array. + + strideX: integer + Index increment. + + Returns + ------- + out: number + Standard deviation. + + Examples + -------- + // Standard Usage: + > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, NaN, 2.0 ] ); + > {{alias}}( x.length, 1, x, 1 ) + ~2.0817 + + // Using `N` and stride parameters: + > x = new {{alias:@stdlib/array/float32}}( [ -2.0, 1.0, 1.0, -5.0, 2.0, -1.0, NaN, NaN ] ); + > {{alias}}( 4, 1, x, 2 ) + ~2.0817 + + // Using view offsets: + > var x0 = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 3.0, 2.0, 5.0, -1.0, NaN, NaN ] ); + > var x1 = new {{alias:@stdlib/array/float32}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); + > {{alias}}( 4, 1, x1, 2 ) + ~2.0817 + + +{{alias}}.ndarray( N, correction, x, strideX, offsetX ) + Computes the standard deviation of a single-precision floating-point + strided array ignoring NaN values and using alternative indexing semantics. + + While typed array views mandate a view offset based on the underlying + buffer, the offset parameter supports indexing semantics based on a + starting index. + + Parameters + ---------- + N: integer + Number of indexed elements. + + correction: number + Degrees of freedom adjustment. Setting this parameter to a value other + than `0` has the effect of adjusting the divisor during the calculation + of the standard deviation according to `n-c` where `c` corresponds to + the provided degrees of freedom adjustment and `n` corresponds to the + number of non-NaN indexed elements. When computing the standard + deviation of a population, setting this parameter to `0` is the + standard choice (i.e., the provided array contains data constituting an + entire population). When computing the corrected sample standard + deviation, setting this parameter to `1` is the standard choice (i.e., + the provided array contains data sampled from a larger population; this + is commonly referred to as Bessel's correction). + + x: Float32Array + Input array. + + strideX: integer + Index increment. + + offsetX: integer + Starting index. + + Returns + ------- + out: number + Standard deviation. + + Examples + -------- + // Standard Usage: + > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, NaN, 2.0 ] ); + > {{alias}}.ndarray( x.length, 1, x, 1, 0 ) + ~2.0817 + + // Using offset parameter: + > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 3.0, 2.0, 5.0, -1.0, NaN, NaN ] ); + > {{alias}}.ndarray( 4, 1, x, 2, 1 ) + ~2.0817 + + See Also + -------- + diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts new file mode 100644 index 000000000000..75a2690db73d --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts @@ -0,0 +1,95 @@ +/* +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +// TypeScript Version: 4.1 + +/** +* Interface describing `snanstdev`. +*/ +interface Routine { + /** + * Computes the standard deviation of a single-precision floating-point strided array, ignoring NaN values. + * + * @param N - number of indexed elements + * @param correction - degrees of freedom adjustment + * @param x - input array + * @param strideX - stride length + * @returns standard deviation + * + * @example + * var Float32Array = require( '@stdlib/array/float32' ); + * + * var x = new Float32Array( [ 1.0, -2.0, NaN, 2.0 ] ); + * + * var v = snanstdev( x.length, 1, x, 1 ); + * // returns ~2.0817 + */ + ( N: number, correction: number, x: Float32Array, strideX: number ): number; + + /** + * Computes the standard deviation of a single-precision floating-point strided array, ignoring NaN values and using alternative indexing semantics. + * + * @param N - number of indexed elements + * @param correction - degrees of freedom adjustment + * @param x - input array + * @param strideX - stride length + * @param offsetX - starting index + * @returns standard deviation + * + * @example + * var Float32Array = require( '@stdlib/array/float32' ); + * + * var x = new Float32Array( [ 1.0, -2.0, NaN, 2.0 ] ); + * + * var v = snanstdev.ndarray( x.length, 1, x, 1, 0 ); + * // returns ~2.0817 + */ + ndarray( N: number, correction: number, x: Float32Array, strideX: number, offsetX: number ): number; +} + +/** +* Computes the standard deviation of a single-precision floating-point strided array, ignoring NaN values. +* +* @param N - number of indexed elements +* @param correction - degrees of freedom adjustment +* @param x - input array +* @param strideX - stride length +* @returns standard deviation +* +* @example +* var Float32Array = require( '@stdlib/array/float32' ); +* +* var x = new Float32Array( [ 1.0, -2.0, NaN, 2.0 ] ); +* +* var v = snanstdev( x.length, 1, x, 1 ); +* // returns ~2.0817 +* +* @example +* var Float32Array = require( '@stdlib/array/float32' ); +* +* var x = new Float32Array( [ 1.0, -2.0, NaN, 2.0 ] ); +* +* var v = snanstdev.ndarray( x.length, 1, x, 1, 0 ); +* // returns ~2.0817 +*/ +declare var snanstdev: Routine; + + +// EXPORTS // + +export = snanstdev; diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts new file mode 100644 index 000000000000..da9c7cbb5317 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts @@ -0,0 +1,187 @@ +/* +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +import snanstdev = require( './index' ); + + +// TESTS // + +// The function returns a number... +{ + const x = new Float32Array( 10 ); + + snanstdev( x.length, 1, x, 1 ); // $ExpectType number +} + +// The compiler throws an error if the function is provided a first argument which is not a number... +{ + const x = new Float32Array( 10 ); + + snanstdev( '10', 1, x, 1 ); // $ExpectError + snanstdev( true, 1, x, 1 ); // $ExpectError + snanstdev( false, 1, x, 1 ); // $ExpectError + snanstdev( null, 1, x, 1 ); // $ExpectError + snanstdev( undefined, 1, x, 1 ); // $ExpectError + snanstdev( [], 1, x, 1 ); // $ExpectError + snanstdev( {}, 1, x, 1 ); // $ExpectError + snanstdev( ( x: number ): number => x, 1, x, 1 ); // $ExpectError +} + +// The compiler throws an error if the function is provided a second argument which is not a number... +{ + const x = new Float32Array( 10 ); + + snanstdev( x.length, '10', x, 1 ); // $ExpectError + snanstdev( x.length, true, x, 1 ); // $ExpectError + snanstdev( x.length, false, x, 1 ); // $ExpectError + snanstdev( x.length, null, x, 1 ); // $ExpectError + snanstdev( x.length, undefined, x, 1 ); // $ExpectError + snanstdev( x.length, [], x, 1 ); // $ExpectError + snanstdev( x.length, {}, x, 1 ); // $ExpectError + snanstdev( x.length, ( x: number ): number => x, x, 1 ); // $ExpectError +} + +// The compiler throws an error if the function is provided a third argument which is not a Float32Array... +{ + const x = new Float32Array( 10 ); + + snanstdev( x.length, 1, 10, 1 ); // $ExpectError + snanstdev( x.length, 1, '10', 1 ); // $ExpectError + snanstdev( x.length, 1, true, 1 ); // $ExpectError + snanstdev( x.length, 1, false, 1 ); // $ExpectError + snanstdev( x.length, 1, null, 1 ); // $ExpectError + snanstdev( x.length, 1, undefined, 1 ); // $ExpectError + snanstdev( x.length, 1, [], 1 ); // $ExpectError + snanstdev( x.length, 1, {}, 1 ); // $ExpectError + snanstdev( x.length, 1, ( x: number ): number => x, 1 ); // $ExpectError +} + +// The compiler throws an error if the function is provided a fourth argument which is not a number... +{ + const x = new Float32Array( 10 ); + + snanstdev( x.length, 1, x, '10' ); // $ExpectError + snanstdev( x.length, 1, x, true ); // $ExpectError + snanstdev( x.length, 1, x, false ); // $ExpectError + snanstdev( x.length, 1, x, null ); // $ExpectError + snanstdev( x.length, 1, x, undefined ); // $ExpectError + snanstdev( x.length, 1, x, [] ); // $ExpectError + snanstdev( x.length, 1, x, {} ); // $ExpectError + snanstdev( x.length, 1, x, ( x: number ): number => x ); // $ExpectError +} + +// The compiler throws an error if the function is provided an unsupported number of arguments... +{ + const x = new Float32Array( 10 ); + + snanstdev(); // $ExpectError + snanstdev( x.length ); // $ExpectError + snanstdev( x.length, 1 ); // $ExpectError + snanstdev( x.length, 1, x ); // $ExpectError + snanstdev( x.length, 1, x, 1, 10 ); // $ExpectError +} + +// Attached to main export is an `ndarray` method which returns a number... +{ + const x = new Float32Array( 10 ); + + snanstdev.ndarray( x.length, 1, x, 1, 0 ); // $ExpectType number +} + +// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number... +{ + const x = new Float32Array( 10 ); + + snanstdev.ndarray( '10', 1, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( true, 1, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( false, 1, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( null, 1, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( undefined, 1, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( [], 1, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( {}, 1, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( ( x: number ): number => x, 1, x, 1, 0 ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided a second argument which is not a number... +{ + const x = new Float32Array( 10 ); + + snanstdev.ndarray( x.length, '10', x, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, true, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, false, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, null, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, undefined, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, [], x, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, {}, x, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, ( x: number ): number => x, x, 1, 0 ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided a third argument which is not a Float32Array... +{ + const x = new Float32Array( 10 ); + + snanstdev.ndarray( x.length, 1, 10, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, '10', 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, true, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, false, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, null, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, undefined, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, [], 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, {}, 1, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, ( x: number ): number => x, 1, 0 ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number... +{ + const x = new Float32Array( 10 ); + + snanstdev.ndarray( x.length, 1, x, '10', 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, true, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, false, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, null, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, undefined, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, [], 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, {}, 0 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, ( x: number ): number => x, 0 ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number... +{ + const x = new Float32Array( 10 ); + + snanstdev.ndarray( x.length, 1, x, 1, '10' ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, true ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, false ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, null ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, undefined ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, [] ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, {} ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, ( x: number ): number => x ); // $ExpectError +} + +// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments... +{ + const x = new Float32Array( 10 ); + + snanstdev.ndarray(); // $ExpectError + snanstdev.ndarray( x.length ); // $ExpectError + snanstdev.ndarray( x.length, 1 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1 ); // $ExpectError + snanstdev.ndarray( x.length, 1, x, 1, 0, 10 ); // $ExpectError +} diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile new file mode 100644 index 000000000000..ff5293d3059f --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2020 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := example.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled examples. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c new file mode 100644 index 000000000000..566c205fde73 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c @@ -0,0 +1,37 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/stats/strided/snanstdev.h" +#include + +int main( void ) { + // Create a strided array: + const float x[] = { 1.0f, 2.0f, 3.0f, 4.0f, 0.0f/0.0f, 6.0f, 7.0f, 8.0f }; + + // Specify the number of elements: + const int N = 8; + + // Specify the stride length: + const int strideX = 1; + + // Compute the standard deviation: + float v = stdlib_strided_snanstdev( N, 1.0f, x, strideX ); + + // Print the result: + printf( "sample standard deviation: %f\n", v ); +} diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js new file mode 100644 index 000000000000..e2a751b5a938 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js @@ -0,0 +1,46 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +var discreteUniform = require( '@stdlib/random/array/discrete-uniform' ); +var bernoulli = require( '@stdlib/random/array/bernoulli' ); +var snanstdev = require( './../lib' ); + +var x = discreteUniform( 10, -50, 50, { + 'dtype': 'float32' +}); +console.log( x ); + +// Create a boolean mask: +var mask = bernoulli( x.length, 0.2, { + 'dtype': 'generic' +}); +console.log( mask ); + +// Randomly set values to NaN: +var i; +for ( i = 0; i < x.length; i++ ) { + if ( mask[ i ] ) { + x[ i ] = NaN; + } +} +console.log( x ); + +var v = snanstdev( x.length, 1, x, 1 ); +console.log( v ); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi b/lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi new file mode 100644 index 000000000000..26476a8c2655 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi @@ -0,0 +1,53 @@ +# @license Apache-2.0 +# +# Copyright (c) 2020 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# A GYP include file for building a Node.js native add-on. +# +# Main documentation: +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Source directory: + 'src_dir': './src', + + # Include directories: + 'include_dirs': [ + '=0.10.0", + "npm": ">2.7.0" + }, + "os": [ + "aix", + "darwin", + "freebsd", + "linux", + "macos", + "openbsd", + "sunos", + "win32", + "windows" + ], + "keywords": [ + "stdlib", + "stdmath", + "statistics", + "stats", + "mathematics", + "math", + "standard deviation", + "variance", + "var", + "deviation", + "dispersion", + "spread", + "sample standard deviation", + "unbiased", + "stdev", + "std", + "nan", + "missing", + "omit", + "ignore", + "strided", + "strided array", + "typed", + "array", + "float32", + "float", + "single", + "float32array" + ], + "__stdlib__": {} +} diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile new file mode 100644 index 000000000000..dd720a3de8f2 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile @@ -0,0 +1,70 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2020 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + + +# RULES # + +#/ +# Removes generated files for building an add-on. +# +# @example +# make clean-addon +#/ +clean-addon: + $(QUIET) -rm -f *.o *.node + +.PHONY: clean-addon + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: clean-addon + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c new file mode 100644 index 000000000000..005cb73cd03f --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -0,0 +1,44 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/stats/strided/snanstdev.h" +#include "stdlib/napi/export.h" +#include "stdlib/napi/argv.h" +#include "stdlib/napi/argv_int64.h" +#include "stdlib/napi/argv_float.h" +#include "stdlib/napi/argv_strided_float32array.h" +#include "stdlib/napi/create_double.h" +#include + +/** +* Receives JavaScript callback invocation data. +* +* @param env environment under which the function is invoked +* @param info callback data +* @return Node-API value +*/ +static napi_value addon( napi_env env, napi_callback_info info ) { + STDLIB_NAPI_ARGV( env, info, argv, argc, 4 ); + STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); + STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); + STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2, 3 ); + STDLIB_NAPI_CREATE_DOUBLE( env, stdlib_strided_snanstdev( N, correction, X, strideX ), v ); + return v; +} + +STDLIB_NAPI_MODULE_EXPORT_FCN( addon ) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c new file mode 100644 index 000000000000..b0cd0f344b2b --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c @@ -0,0 +1,48 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2025 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/stats/strided/snanstdev.h" +#include "stdlib/stats/strided/snanstdevpn.h" +#include "stdlib/blas/base/shared.h" + +/** +* Computes the standard deviation of a single-precision floating-point strided array, ignoring NaN values. +* +* @param N number of indexed elements +* @param correction degrees of freedom adjustment +* @param X input array +* @param strideX stride length +* @return output value +*/ +float API_SUFFIX(stdlib_strided_snanstdev)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX ) { + return API_SUFFIX(stdlib_strided_snanstdevpn)( N, correction, X, strideX ); +} + +/** +* Computes the standard deviation of a single-precision floating-point strided array, ignoring NaN values and using alternative indexing semantics. +* +* @param N number of indexed elements +* @param correction degrees of freedom adjustment +* @param X input array +* @param strideX stride length +* @param offsetX starting index for X +* @return output value +*/ +float API_SUFFIX(stdlib_strided_snanstdev_ndarray)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ) { + return API_SUFFIX(stdlib_strided_snanstdevpn_ndarray)( N, correction, X, strideX, offsetX ); +} diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js new file mode 100644 index 000000000000..f9976257db25 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js @@ -0,0 +1,97 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var tape = require( 'tape' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var Float32Array = require( '@stdlib/array/float32' ); +var snanstdev = require( './../lib' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof snanstdev, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function has an arity of 4', function test( t ) { + t.strictEqual( snanstdev.length, 4, 'has expected arity' ); + t.end(); +}); + +tape( 'the function calculates the standard deviation of a strided array, ignoring NaN values', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, NaN, 5.0, 0.0, 3.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( typeof v, 'number', 'returns a number' ); + + x = new Float32Array( [ -4.0, NaN, -4.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = new Float32Array( [ NaN, 4.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN`', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( 0, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = snanstdev( -1, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `stride` parameter equal to `0`, the function returns `0` if the first element is not NaN', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( x.length, 1, x, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports an `ndarray` method which calculates the standard deviation using alternative indexing semantics', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, NaN, -4.0, 5.0, 0.0, 3.0 ] ); + v = snanstdev.ndarray( x.length, 1, x, 1, 0 ); + t.strictEqual( typeof v, 'number', 'returns a number' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js new file mode 100644 index 000000000000..c14e325816c9 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js @@ -0,0 +1,158 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var tape = require( 'tape' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var Float32Array = require( '@stdlib/array/float32' ); +var snanstdev = require( './../lib/ndarray.js' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof snanstdev, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function has an arity of 5', function test( t ) { + t.strictEqual( snanstdev.length, 5, 'has expected arity' ); + t.end(); +}); + +tape( 'the function calculates the standard deviation of a strided array, ignoring NaN values', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, NaN, 5.0, 0.0, 3.0 ] ); + v = snanstdev( x.length, 1, x, 1, 0 ); + t.strictEqual( typeof v, 'number', 'returns a number' ); + + x = new Float32Array( [ -4.0, NaN, -4.0 ] ); + v = snanstdev( x.length, 1, x, 1, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = new Float32Array( [ NaN, 4.0 ] ); + v = snanstdev( x.length, 1, x, 1, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports an `offset` parameter', function test( t ) { + var x; + var v; + + x = new Float32Array([ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0, // 3 + NaN, // 4 + NaN + ]); + + v = snanstdev( 5, 1, x, 2, 1 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN`', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( 0, 1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = snanstdev( -1, 1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `stride` parameter equal to `0`, the function returns `0` if the indexed element is not NaN', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( x.length, 1, x, 0, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports negative strides', function test( t ) { + var x; + var v; + + x = new Float32Array([ + NaN, // 4 + NaN, + 1.0, // 3 + 2.0, + 2.0, // 2 + -7.0, + -2.0, // 1 + 3.0, + 4.0, // 0 + 2.0 + ]); + + v = snanstdev( 5, 1, x, -2, 8 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports view offsets', function test( t ) { + var x0; + var x1; + var v; + + x0 = new Float32Array([ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0, // 3 + NaN, // 4 + NaN + ]); + + x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element + + v = snanstdev( 5, 1, x1, 2, 0 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js new file mode 100644 index 000000000000..5f596178b217 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js @@ -0,0 +1,155 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var tape = require( 'tape' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var Float32Array = require( '@stdlib/array/float32' ); +var tryRequire = require( '@stdlib/utils/try-require' ); + + +// VARIABLES // + +var snanstdev = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) ); +var opts = { + 'skip': ( snanstdev instanceof Error ) +}; + + +// TESTS // + +tape( 'main export is a function', opts, function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof snanstdev, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function has an arity of 5', opts, function test( t ) { + t.strictEqual( snanstdev.length, 5, 'has expected arity' ); + t.end(); +}); + +tape( 'the function calculates the standard deviation of a strided array, ignoring NaN values', opts, function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, NaN, 5.0, 0.0, 3.0 ] ); + v = snanstdev( x.length, 1, x, 1, 0 ); + t.strictEqual( typeof v, 'number', 'returns a number' ); + + x = new Float32Array( [ -4.0, NaN, -4.0 ] ); + v = snanstdev( x.length, 1, x, 1, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = new Float32Array( [ NaN, 4.0 ] ); + v = snanstdev( x.length, 1, x, 1, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports an `offset` parameter', opts, function test( t ) { + var x; + var v; + + x = new Float32Array([ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0, // 3 + NaN, // 4 + NaN + ]); + + v = snanstdev( 5, 1, x, 2, 1 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN`', opts, function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( 0, 1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = snanstdev( -1, 1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports negative strides', opts, function test( t ) { + var x; + var v; + + x = new Float32Array([ + NaN, // 4 + NaN, + 1.0, // 3 + 2.0, + 2.0, // 2 + -7.0, + -2.0, // 1 + 3.0, + 4.0, // 0 + 2.0 + ]); + + v = snanstdev( 5, 1, x, -2, 8 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports view offsets', opts, function test( t ) { + var x0; + var x1; + var v; + + x0 = new Float32Array([ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0, // 3 + NaN, // 4 + NaN + ]); + + x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element + + v = snanstdev( 5, 1, x1, 2, 0 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js new file mode 100644 index 000000000000..dd11fa9b633b --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js @@ -0,0 +1,228 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var tape = require( 'tape' ); +var sqrt = require( '@stdlib/math/base/special/sqrt' ); +var abs = require( '@stdlib/math/base/special/abs' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' ); +var EPS = require( '@stdlib/constants/float32/eps' ); +var Float32Array = require( '@stdlib/array/float32' ); +var snanstdev = require( './../lib/snanstdev.js' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof snanstdev, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function has an arity of 4', function test( t ) { + t.strictEqual( snanstdev.length, 4, 'has expected arity' ); + t.end(); +}); + +tape( 'the function calculates the population standard deviation of a strided array, ignoring NaN values', function test( t ) { + var expected; + var delta; + var tol; + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, NaN, 0.0, 3.0 ] ); + v = snanstdev( x.length, 0, x, 1 ); + + expected = float64ToFloat32( sqrt( 53.5/6 ) ); + delta = abs( v - expected ); + tol = 2.0 * EPS * abs( expected ); + t.strictEqual( delta <= tol, true, 'within tolerance. Actual: '+v+'. E: '+expected+'. tol: '+tol+'. Δ: '+delta+'.' ); + + x = new Float32Array( [ -4.0, NaN, -4.0 ] ); + v = snanstdev( x.length, 0, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = new Float32Array( [ NaN, NaN ] ); + v = snanstdev( x.length, 0, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function calculates the sample standard deviation of a strided array, ignoring NaN values', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, NaN, -4.0, 5.0, 0.0, 3.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( v, float64ToFloat32( sqrt( 53.5/5 ) ), 'returns expected value' ); + + x = new Float32Array( [ -4.0, NaN, -4.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = new Float32Array( [ NaN, NaN ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN`', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( 0, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = snanstdev( -1, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter equal to `1` and a correction of `0`, the function returns a population standard deviation of `0`', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( 1, 0, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `correction` parameter yielding `n-correction` less than or equal to `0` (where `n` is number of non-NaN elements), the function returns `NaN`', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, NaN, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( x.length, 5, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = snanstdev( x.length, 6, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports a `stride` parameter', function test( t ) { + var x; + var v; + + x = new Float32Array([ + 1.0, // 0 + 2.0, + 2.0, // 1 + -7.0, + -2.0, // 2 + 3.0, + 4.0, // 3 + 2.0, + NaN, // 4 + NaN + ]); + + v = snanstdev( 5, 1, x, 2 ); + + t.strictEqual( v, 2.5, 'returns expected value' ); + t.end(); +}); + +tape( 'the function supports a negative `stride` parameter', function test( t ) { + var x; + var v; + + x = new Float32Array([ + NaN, // 4 + NaN, + 1.0, // 3 + 2.0, + 2.0, // 2 + -7.0, + -2.0, // 1 + 3.0, + 4.0, // 0 + 2.0 + ]); + + v = snanstdev( 5, 1, x, -2 ); + + t.strictEqual( v, 2.5, 'returns expected value' ); + t.end(); +}); + +tape( 'if provided a `stride` parameter equal to `0`, the function returns `0` if the first element is not NaN', function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( x.length, 1, x, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `stride` parameter equal to `0`, the function returns `NaN` if the first element is NaN', function test( t ) { + var x; + var v; + + x = new Float32Array( [ NaN, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( x.length, 1, x, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports view offsets', function test( t ) { + var x0; + var x1; + var v; + + x0 = new Float32Array([ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0, // 3 + 6.0, + NaN, // 4 + NaN + ]); + + x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element + + v = snanstdev( 5, 1, x1, 2 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js new file mode 100644 index 000000000000..8ae04f7ea4bb --- /dev/null +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js @@ -0,0 +1,168 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2020 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var tape = require( 'tape' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var Float32Array = require( '@stdlib/array/float32' ); +var tryRequire = require( '@stdlib/utils/try-require' ); + + +// VARIABLES // + +var snanstdev = tryRequire( resolve( __dirname, './../lib/snanstdev.native.js' ) ); +var opts = { + 'skip': ( snanstdev instanceof Error ) +}; + + +// TESTS // + +tape( 'main export is a function', opts, function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof snanstdev, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function has an arity of 4', opts, function test( t ) { + t.strictEqual( snanstdev.length, 4, 'has expected arity' ); + t.end(); +}); + +tape( 'the function calculates the standard deviation of a strided array, ignoring NaN values', opts, function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, NaN, 5.0, 0.0, 3.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( typeof v, 'number', 'returns a number' ); + + x = new Float32Array( [ -4.0, NaN, -4.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = new Float32Array( [ NaN, 4.0 ] ); + v = snanstdev( x.length, 1, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN`', opts, function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( 0, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = snanstdev( -1, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports a `stride` parameter', opts, function test( t ) { + var x; + var v; + + x = new Float32Array([ + 1.0, // 0 + 2.0, + 2.0, // 1 + -7.0, + -2.0, // 2 + 3.0, + 4.0, // 3 + 2.0, + NaN, // 4 + NaN + ]); + + v = snanstdev( 5, 1, x, 2 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports a negative `stride` parameter', opts, function test( t ) { + var x; + var v; + + x = new Float32Array([ + NaN, // 4 + NaN, + 1.0, // 3 + 2.0, + 2.0, // 2 + -7.0, + -2.0, // 1 + 3.0, + 4.0, // 0 + 2.0 + ]); + + v = snanstdev( 5, 1, x, -2 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `stride` parameter equal to `0`, the function returns `0` if the first element is not NaN', opts, function test( t ) { + var x; + var v; + + x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] ); + + v = snanstdev( x.length, 1, x, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports view offsets', opts, function test( t ) { + var x0; + var x1; + var v; + + x0 = new Float32Array([ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0, // 3 + 6.0, + NaN, // 4 + NaN + ]); + + x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element + + v = snanstdev( 5, 1, x1, 2 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); From ce85b3d9e7cae5a8fb4af314558ddc80572b1ead Mon Sep 17 00:00:00 2001 From: stdlib-bot <82920195+stdlib-bot@users.noreply.github.com> Date: Mon, 9 Feb 2026 19:37:43 +0000 Subject: [PATCH 02/14] chore: update copyright years --- lib/node_modules/@stdlib/stats/strided/snanstdev/README.md | 2 +- .../@stdlib/stats/strided/snanstdev/benchmark/benchmark.js | 2 +- .../stats/strided/snanstdev/benchmark/benchmark.native.js | 2 +- .../stats/strided/snanstdev/benchmark/benchmark.ndarray.js | 2 +- .../strided/snanstdev/benchmark/benchmark.ndarray.native.js | 2 +- .../@stdlib/stats/strided/snanstdev/benchmark/c/Makefile | 2 +- .../stats/strided/snanstdev/benchmark/c/benchmark.length.c | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp | 2 +- .../@stdlib/stats/strided/snanstdev/docs/types/index.d.ts | 2 +- .../@stdlib/stats/strided/snanstdev/docs/types/test.ts | 2 +- .../@stdlib/stats/strided/snanstdev/examples/c/Makefile | 2 +- .../@stdlib/stats/strided/snanstdev/examples/c/example.c | 2 +- .../@stdlib/stats/strided/snanstdev/examples/index.js | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi | 2 +- .../strided/snanstdev/include/stdlib/stats/strided/snanstdev.h | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/lib/index.js | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/lib/main.js | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/lib/native.js | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.js | 2 +- .../@stdlib/stats/strided/snanstdev/lib/ndarray.native.js | 2 +- .../@stdlib/stats/strided/snanstdev/lib/snanstdev.js | 2 +- .../@stdlib/stats/strided/snanstdev/lib/snanstdev.native.js | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js | 2 +- .../@stdlib/stats/strided/snanstdev/test/test.ndarray.js | 2 +- .../@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js | 2 +- .../@stdlib/stats/strided/snanstdev/test/test.snanstdev.js | 2 +- .../stats/strided/snanstdev/test/test.snanstdev.native.js | 2 +- 30 files changed, 30 insertions(+), 30 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/README.md b/lib/node_modules/@stdlib/stats/strided/snanstdev/README.md index 29a892e64ad7..419d172cc560 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/README.md +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/README.md @@ -2,7 +2,7 @@ @license Apache-2.0 -Copyright (c) 2020 The Stdlib Authors. +Copyright (c) 2026 The Stdlib Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js index 30e28eaee188..649c9113b82e 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js index ca133b82ccea..7871e2152aaf 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js index 28ed827ea49c..aaa766b36b86 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js index 901add95dfba..9894611e4617 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/benchmark.ndarray.native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile index 7280962b4c4d..0756dc7da20a 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/Makefile @@ -1,7 +1,7 @@ #/ # @license Apache-2.0 # -# Copyright (c) 2020 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c index b85d8173d228..f99c77514fff 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/benchmark/c/benchmark.length.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp b/lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp index 7d0005b2e390..0d6508a12e99 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/binding.gyp @@ -1,6 +1,6 @@ # @license Apache-2.0 # -# Copyright (c) 2020 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts index 75a2690db73d..b9a92fe63ffc 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/index.d.ts @@ -1,7 +1,7 @@ /* * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts index da9c7cbb5317..306d17061555 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/docs/types/test.ts @@ -1,7 +1,7 @@ /* * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile index ff5293d3059f..c8f8e9a1517b 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/Makefile @@ -1,7 +1,7 @@ #/ # @license Apache-2.0 # -# Copyright (c) 2020 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c index 566c205fde73..f4bb8533f0ba 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/c/example.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js index e2a751b5a938..1bc0b8c41964 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/examples/index.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi b/lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi index 26476a8c2655..bee8d41a2caf 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/include.gypi @@ -1,6 +1,6 @@ # @license Apache-2.0 # -# Copyright (c) 2020 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/include/stdlib/stats/strided/snanstdev.h b/lib/node_modules/@stdlib/stats/strided/snanstdev/include/stdlib/stats/strided/snanstdev.h index a44515c354d1..4ee1740b3113 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/include/stdlib/stats/strided/snanstdev.h +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/include/stdlib/stats/strided/snanstdev.h @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/index.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/index.js index 16486156dca9..aa2f7bd5865d 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/index.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/index.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/main.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/main.js index 9abb5427fbbc..98ede3fe9b01 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/main.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/main.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/native.js index 74448c74c345..b9c632e18601 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/native.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.js index 6d9b9dae7e6e..6400701a12f7 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.native.js index 83515e43c580..9fafc0e8d3fd 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.native.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/ndarray.native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.js index f37c3636a531..681bc46e33c3 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.native.js index 74448c74c345..b9c632e18601 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.native.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/lib/snanstdev.native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile index dd720a3de8f2..2caf905cedbe 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/Makefile @@ -1,7 +1,7 @@ #/ # @license Apache-2.0 # -# Copyright (c) 2020 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 005cb73cd03f..47b632467c9d 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c index b0cd0f344b2b..6384bf466f95 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2025 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js index f9976257db25..8ba80fc765c2 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js index c14e325816c9..8da9cb05c0e6 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js index 5f596178b217..ced386514097 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.ndarray.native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js index dd11fa9b633b..716b19b88405 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js index 8ae04f7ea4bb..84f530ceb3ed 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/test/test.snanstdev.native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. From 0c350e8ac6d7880a2aead7de3af618884abcf631 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Mon, 9 Feb 2026 22:19:25 -0800 Subject: [PATCH 03/14] fix: update manifest.json dependencies to use base instead of strided --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: na - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../@stdlib/stats/strided/snanstdev/manifest.json | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/manifest.json b/lib/node_modules/@stdlib/stats/strided/snanstdev/manifest.json index 044036510b7a..085671eccc29 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/manifest.json +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/manifest.json @@ -39,7 +39,7 @@ "libpath": [], "dependencies": [ "@stdlib/blas/base/shared", - "@stdlib/stats/strided/snanstdevpn", + "@stdlib/stats/base/snanstdevpn", "@stdlib/napi/export", "@stdlib/napi/argv", "@stdlib/napi/argv-int64", @@ -61,7 +61,7 @@ "libpath": [], "dependencies": [ "@stdlib/blas/base/shared", - "@stdlib/stats/strided/snanstdevpn" + "@stdlib/stats/base/snanstdevpn" ] }, { @@ -77,7 +77,7 @@ "libpath": [], "dependencies": [ "@stdlib/blas/base/shared", - "@stdlib/stats/strided/snanstdevpn" + "@stdlib/stats/base/snanstdevpn" ] }, { @@ -93,7 +93,7 @@ "libpath": [], "dependencies": [ "@stdlib/blas/base/shared", - "@stdlib/stats/strided/snanstdevpn" + "@stdlib/stats/base/snanstdevpn" ] } ] From b623c73dacee142a55b174ddf88fc1979e5a3412 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Mon, 9 Feb 2026 22:38:06 -0800 Subject: [PATCH 04/14] fix: correct C source files - update include path and fix macro arguments --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c | 2 +- lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 47b632467c9d..7e6e2cd70086 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -36,7 +36,7 @@ static napi_value addon( napi_env env, napi_callback_info info ) { STDLIB_NAPI_ARGV( env, info, argv, argc, 4 ); STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); - STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2, 3 ); + STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 ); STDLIB_NAPI_CREATE_DOUBLE( env, stdlib_strided_snanstdev( N, correction, X, strideX ), v ); return v; } diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c index 6384bf466f95..7486eb50f633 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c @@ -17,7 +17,7 @@ */ #include "stdlib/stats/strided/snanstdev.h" -#include "stdlib/stats/strided/snanstdevpn.h" +#include "stdlib/stats/base/snanstdevpn.h" #include "stdlib/blas/base/shared.h" /** From 8ad700ce3a31f4050cd724cdc32782f570e693cf Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Mon, 9 Feb 2026 22:57:47 -0800 Subject: [PATCH 05/14] fix: correct addon.c to use strideX variable name --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 7e6e2cd70086..78562ec8c4dc 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -36,7 +36,8 @@ static napi_value addon( napi_env env, napi_callback_info info ) { STDLIB_NAPI_ARGV( env, info, argv, argc, 4 ); STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); - STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 ); + STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, stride, argv, 2 ); + STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); STDLIB_NAPI_CREATE_DOUBLE( env, stdlib_strided_snanstdev( N, correction, X, strideX ), v ); return v; } From da7e0d09fde3213b501213fe01bf44ca352164cf Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Mon, 9 Feb 2026 23:10:44 -0800 Subject: [PATCH 06/14] fix: declare stride variable in addon.c --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 78562ec8c4dc..cfbbe5872cbb 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -33,6 +33,7 @@ * @return Node-API value */ static napi_value addon( napi_env env, napi_callback_info info ) { + CBLAS_INT stride; STDLIB_NAPI_ARGV( env, info, argv, argc, 4 ); STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); From 0ff91c7743cbb5634320788f4317ea9c31db5428 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Mon, 9 Feb 2026 23:25:42 -0800 Subject: [PATCH 07/14] fix: use stdlib_base_snanstdevpn functions instead of stdlib_strided_snanstdevpn --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c index 7486eb50f633..11c42bf31a4e 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c @@ -30,7 +30,7 @@ * @return output value */ float API_SUFFIX(stdlib_strided_snanstdev)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX ) { - return API_SUFFIX(stdlib_strided_snanstdevpn)( N, correction, X, strideX ); + return API_SUFFIX(stdlib_base_snanstdevpn)( N, correction, X, strideX ); } /** @@ -44,5 +44,5 @@ float API_SUFFIX(stdlib_strided_snanstdev)( const CBLAS_INT N, const float corre * @return output value */ float API_SUFFIX(stdlib_strided_snanstdev_ndarray)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ) { - return API_SUFFIX(stdlib_strided_snanstdevpn_ndarray)( N, correction, X, strideX, offsetX ); + return API_SUFFIX(stdlib_base_snanstdevpn_ndarray)( N, correction, X, strideX, offsetX ); } From d13db3712281ca5dfabddcf4f0a9fb81a164766f Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Mon, 9 Feb 2026 23:39:39 -0800 Subject: [PATCH 08/14] fix: declare stride variable in main.c --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c index 11c42bf31a4e..7486eb50f633 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c @@ -30,7 +30,7 @@ * @return output value */ float API_SUFFIX(stdlib_strided_snanstdev)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX ) { - return API_SUFFIX(stdlib_base_snanstdevpn)( N, correction, X, strideX ); + return API_SUFFIX(stdlib_strided_snanstdevpn)( N, correction, X, strideX ); } /** @@ -44,5 +44,5 @@ float API_SUFFIX(stdlib_strided_snanstdev)( const CBLAS_INT N, const float corre * @return output value */ float API_SUFFIX(stdlib_strided_snanstdev_ndarray)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ) { - return API_SUFFIX(stdlib_base_snanstdevpn_ndarray)( N, correction, X, strideX, offsetX ); + return API_SUFFIX(stdlib_strided_snanstdevpn_ndarray)( N, correction, X, strideX, offsetX ); } From 0629c98e07e9c744105c4d89d42c1f49224c4840 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Tue, 10 Feb 2026 01:32:10 -0800 Subject: [PATCH 09/14] fix: export ndarray method in snanstdev native addon --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../stats/strided/snanstdev/src/addon.c | 42 ++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index cfbbe5872cbb..474ca21d465c 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -41,6 +41,46 @@ static napi_value addon( napi_env env, napi_callback_info info ) { STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); STDLIB_NAPI_CREATE_DOUBLE( env, stdlib_strided_snanstdev( N, correction, X, strideX ), v ); return v; +/** +* Receives JavaScript callback invocation data for ndarray interface. +* +* @param env environment under which the function is invoked +* @param info callback data +* @return Node-API value +*/ +static napi_value addon_ndarray( napi_env env, napi_callback_info info ) { + STDLIB_NAPI_ARGV( env, info, argv, argc, 5 ); + STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); + STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); + STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 ); + STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); + STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 4 ); + STDLIB_NAPI_CALL_RETURN_FLOAT64( env, stdlib_strided_snanstdev_ndarray( N, correction, X, strideX, offsetX ) ); } -STDLIB_NAPI_MODULE_EXPORT_FCN( addon ) +/** +* Initializes a Node-API module. +* +* @param env environment under which the function is invoked +* @param exports exports object +* @return main export +*/ +static napi_value init( napi_env env, napi_value exports ) { + napi_value fcn; + napi_status status; + + // Create the main function: + status = napi_create_function( env, "exports", NAPI_AUTO_LENGTH, addon, NULL, &fcn ); + assert( status == napi_ok ); + + // Create the ndarray function: + napi_value ndarray_fcn; + status = napi_create_function( env, "ndarray", NAPI_AUTO_LENGTH, addon_ndarray, NULL, &ndarray_fcn ); + assert( status == napi_ok ); + + // Set the ndarray property on the main function: + status = napi_set_named_property( env, fcn, "ndarray", ndarray_fcn ); + assert( status == napi_ok ); + + return fcn; +} From 95cf4947d7d61c291a36f0a07a3de8efe2fb09c6 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Tue, 10 Feb 2026 02:27:31 -0800 Subject: [PATCH 10/14] fix: export ndarray method in native addon --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../stats/strided/snanstdev/src/addon.c | 29 ++++++++++--------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 474ca21d465c..9e2169938a33 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2026 The Stdlib Authors. +* Copyright (c) 2020 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -17,30 +17,30 @@ */ #include "stdlib/stats/strided/snanstdev.h" -#include "stdlib/napi/export.h" -#include "stdlib/napi/argv.h" #include "stdlib/napi/argv_int64.h" #include "stdlib/napi/argv_float.h" #include "stdlib/napi/argv_strided_float32array.h" #include "stdlib/napi/create_double.h" #include +#include /** * Receives JavaScript callback invocation data. * -* @param env environment under which the function is invoked -* @param info callback data -* @return Node-API value +* @param env environment under which the function is invoked +* @param info callback data +* @return Node-API value */ static napi_value addon( napi_env env, napi_callback_info info ) { - CBLAS_INT stride; - STDLIB_NAPI_ARGV( env, info, argv, argc, 4 ); + STDLIB_NAPI_ARGV( env, info, argv, argc, 3 ); STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); + CBLAS_INT stride; STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, stride, argv, 2 ); - STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); - STDLIB_NAPI_CREATE_DOUBLE( env, stdlib_strided_snanstdev( N, correction, X, strideX ), v ); - return v; + double v = stdlib_strided_snanstdev( N, correction, X, stride ); + return stdlib_napi_create_double( env, v ); +} + /** * Receives JavaScript callback invocation data for ndarray interface. * @@ -52,10 +52,11 @@ static napi_value addon_ndarray( napi_env env, napi_callback_info info ) { STDLIB_NAPI_ARGV( env, info, argv, argc, 5 ); STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); - STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 2 ); + STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, stride, argv, 2 ); STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 4 ); - STDLIB_NAPI_CALL_RETURN_FLOAT64( env, stdlib_strided_snanstdev_ndarray( N, correction, X, strideX, offsetX ) ); + double v = stdlib_strided_snanstdev_ndarray( N, correction, X, strideX, offsetX ); + return stdlib_napi_create_double( env, v ); } /** @@ -84,3 +85,5 @@ static napi_value init( napi_env env, napi_value exports ) { return fcn; } + +NAPI_MODULE( NODE_GYP_MODULE_NAME, init ) From e583a532e1120017350757ccb5e00fc498489236 Mon Sep 17 00:00:00 2001 From: stdlib-bot <82920195+stdlib-bot@users.noreply.github.com> Date: Tue, 10 Feb 2026 10:30:13 +0000 Subject: [PATCH 11/14] chore: update copyright years --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 9e2169938a33..91aac035dae2 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2020 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. From d5f122995d32556d36c54f96e561065794d408ec Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Wed, 11 Feb 2026 22:14:36 -0800 Subject: [PATCH 12/14] fix: variables in addon.c --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../@stdlib/stats/strided/snanstdev/src/addon.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 91aac035dae2..947e3eff3350 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -38,7 +38,11 @@ static napi_value addon( napi_env env, napi_callback_info info ) { CBLAS_INT stride; STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, stride, argv, 2 ); double v = stdlib_strided_snanstdev( N, correction, X, stride ); - return stdlib_napi_create_double( env, v ); + + napi_value out; + napi_status status = stdlib_napi_create_double( env, v, &out ); + assert( status == napi_ok ); + return out; } /** @@ -52,11 +56,16 @@ static napi_value addon_ndarray( napi_env env, napi_callback_info info ) { STDLIB_NAPI_ARGV( env, info, argv, argc, 5 ); STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); + CBLAS_INT stride; STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, stride, argv, 2 ); STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 4 ); double v = stdlib_strided_snanstdev_ndarray( N, correction, X, strideX, offsetX ); - return stdlib_napi_create_double( env, v ); + + napi_value out; + napi_status status = stdlib_napi_create_double( env, v, &out ); + assert( status == napi_ok ); + return out; } /** From b4aba9c3574f84827d5bc6c45a2cc03aa81b1b88 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Wed, 11 Feb 2026 22:30:24 -0800 Subject: [PATCH 13/14] feat: add C implementation for stats/strided/snanstdev --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c | 3 ++- lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index 947e3eff3350..df8f90424294 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -32,11 +32,12 @@ * @return Node-API value */ static napi_value addon( napi_env env, napi_callback_info info ) { - STDLIB_NAPI_ARGV( env, info, argv, argc, 3 ); + STDLIB_NAPI_ARGV( env, info, argv, argc, 4 ); STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 ); STDLIB_NAPI_ARGV_FLOAT( env, correction, argv, 1 ); CBLAS_INT stride; STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, stride, argv, 2 ); + STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); double v = stdlib_strided_snanstdev( N, correction, X, stride ); napi_value out; diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c index 7486eb50f633..11c42bf31a4e 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/main.c @@ -30,7 +30,7 @@ * @return output value */ float API_SUFFIX(stdlib_strided_snanstdev)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX ) { - return API_SUFFIX(stdlib_strided_snanstdevpn)( N, correction, X, strideX ); + return API_SUFFIX(stdlib_base_snanstdevpn)( N, correction, X, strideX ); } /** @@ -44,5 +44,5 @@ float API_SUFFIX(stdlib_strided_snanstdev)( const CBLAS_INT N, const float corre * @return output value */ float API_SUFFIX(stdlib_strided_snanstdev_ndarray)( const CBLAS_INT N, const float correction, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX ) { - return API_SUFFIX(stdlib_strided_snanstdevpn_ndarray)( N, correction, X, strideX, offsetX ); + return API_SUFFIX(stdlib_base_snanstdevpn_ndarray)( N, correction, X, strideX, offsetX ); } From 86ec2f8ff3d4a198431c2cb6469832daa5ba4375 Mon Sep 17 00:00:00 2001 From: Aryan Kumar Date: Wed, 11 Feb 2026 22:44:19 -0800 Subject: [PATCH 14/14] fix: variables in addon.c --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c index df8f90424294..2fc032427cfe 100644 --- a/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c +++ b/lib/node_modules/@stdlib/stats/strided/snanstdev/src/addon.c @@ -38,7 +38,7 @@ static napi_value addon( napi_env env, napi_callback_info info ) { CBLAS_INT stride; STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, stride, argv, 2 ); STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 3 ); - double v = stdlib_strided_snanstdev( N, correction, X, stride ); + double v = stdlib_strideXd_snanstdev( N, correction, X, stride ); napi_value out; napi_status status = stdlib_napi_create_double( env, v, &out );