[Autoloop: build-tsikit-learn-scikit-learn-typescript-migration]

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🤖 This PR is maintained by Autoloop. Each accepted iteration adds a commit to this branch.

tsikit-learn — scikit-learn TypeScript Migration

Program: Build tsikit-learn: scikit-learn → TypeScript migration (Issue #5)
Best Metric: 15 sklearn_features_ported

What's been implemented so far

Phase 1 — Foundation:

• exceptions — NotFittedError, ConvergenceWarning, ValueError
• base — BaseEstimator, ClassifierMixin, RegressorMixin, TransformerMixin, ClusterMixin
• utils/extmath — safeDot, gramMatrix, cholesky, rowNorms, matMul, transpose
• utils/validation — checkArray, checkXy, checkFeaturesConsistency
• utils/multiclass — typeOfTarget, uniqueLabels, classCount
• utils/class_weight — computeClassWeight, computeSampleWeight

Phase 2 — Preprocessing & Metrics:

• preprocessing/StandardScaler — Welford online mean/variance
• preprocessing/MinMaxScaler — feature_range scaling
• preprocessing/LabelEncoder — label encoding/decoding
• preprocessing/Normalizer — L1/L2/max normalization
• metrics/regression — MSE, MAE, R2, MAPE, explained_variance
• metrics/classification — accuracy, confusion_matrix, precision, recall, F1, log_loss
• model_selection — train_test_split, KFold, StratifiedKFold

Phase 3 (new this iteration):

• linear_model/LinearRegression — OLS via Cholesky decomposition (normal equations)
• linear_model/Ridge — L2-regularized least squares

Infrastructure

• CI workflow (GitHub Actions with Bun)
• Comprehensive tests (60+ test cases)
• Interactive playground deployed to GitHub Pages

Generated by Autoloop · ● 42.8M · ◷

To install this agentic workflow, run

gh aw add .github/workflows/autoloop.md

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Note

This was originally intended as a pull request, but the git push operation failed.

Workflow Run: View run details and download bundle artifact

The bundle file is available in the agent artifact in the workflow run linked above.

To create a pull request with the changes:

# Download the artifact from the workflow run
gh run download 25737555375 -n agent -D /tmp/agent-25737555375

# Fetch the bundle into a local branch
git fetch /tmp/agent-25737555375/aw-autoloop-build-tsikit-learn-scikit-learn-typescript-migration.bundle refs/heads/autoloop/build-tsikit-learn-scikit-learn-typescript-migration:refs/heads/autoloop/build-tsikit-learn-scikit-learn-typescript-migration
git checkout autoloop/build-tsikit-learn-scikit-learn-typescript-migration

# Push the branch to origin
git push origin autoloop/build-tsikit-learn-scikit-learn-typescript-migration

# Create the pull request
gh pr create --title '[Autoloop: build-tsikit-learn-scikit-learn-typescript-migration]' --base main --head autoloop/build-tsikit-learn-scikit-learn-typescript-migration --repo githubnext/tsikit-learn