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Metrics r2
github-actions[bot] edited this page Aug 22, 2026
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The coefficient of determination: how much better the model is than always predicting the mean, as a unitless score.
| Member | What it does |
|---|---|
R2.Score |
One score for the whole prediction: 1 minus the residual variance over the truth's variance. |
R2.PerOutput |
One score per output, unreduced. |
R2.VarianceWeighted |
One score, each output counted in proportion to how much its own truth varies. |
- 0001-target-framework
- 0002-unicode-comparison-unit
- 0003-provenance-and-licensing
- 0004-levenshtein-myers-backlog
- 0005-hamming-jellyfish-divergence
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- 0007-metaphone-scope
- 0008-italian-enza-nltk-divergence
- 0009-sample-consumes-a-local-feed
- 0010-stop-word-list-provenance
- 0011-persistence-format
- 0012-per-package-versioning
- 0013-sentencepiece-parity-scope
- 0014-precompiled-normalizer
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- 0016-metrics-package-placement
- 0017-bpe-parity-scope
- 0018-multiclass-roc-auc-parallelism-is-opt-in
- 0019-the-net-analysers-run-in-the-build-too
- 0020-normalize-is-a-projection-not-a-parameter
- 0021-multioutput-is-a-method-not-an-enum
- 0022-added-token-matching-flags
- 0023-byte-level-decode-substitutes
- 0024-weighted-median-averages-within-scikit-learns-epsilon
- 0025-quickselect-replaces-a-full-sort-for-the-median
- 0026-r2-and-explainedvariance-split-their-undefined-cases-differently
- 0027-r2-and-explainedvariance-vectorize-only-a-single-output
- 0028-log1p-is-kahans-identity-not-math-log-1-plus-x
- 0029-balanced-accuracy-adjusted-is-left-to-ieee-754-at-the-edge
- 0030-cohen-kappa-keeps-scikit-learns-expected-matrix-orientation
- 0031-nosamplecorrect-mirrors-numpys-float64-upcast
- 0032-fbeta-substitutes-tp-predicted-and-support-algebraically
- 0033-compensated-sum-is-neumaiers-variant
- 0034-dropout-is-refused-for-want-of-a-user
- 0035-a-null-pre-split-is-removed-with-invert-not-isolated
- 0036-a-member-may-ship-without-an-oracle-if-it-says-so
- 0037-the-guards-run-before-the-commit
- 0038-the-gate-confronts-an-exception-tag-with-the-page-that-documents-it
- 0039-mutual-information-returns-zero-on-an-empty-input
- 0040-a-curve-is-a-sealed-class-per-curve
- 0041-one-sample-file-per-public-class
- 0042-phonetic-encoders-refuse-a-null-word
- 0043-the-equality-table-is-sized-to-the-pattern
- 0044-compression-belongs-to-the-caller
- 0045-a-console-call-carries-its-reason-on-the-line
- 0046-check-adr-immutable-runs-in-ci-only
- 0047-one-gate-per-kernel-not-one-per-alphabet
- 0048-the-gate-depends-on-the-kernel-and-the-alphabet
- 0049-two-gates-per-kernel-tested-where-the-width-is-known
- 0050-the-sentencepiece-bpe-lineage-stays-a-bpe-model
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