fix(STEF-2854): handle backtest robustness issues#837

Merged

egordm merged 17 commits intorelease/v4.0.0from

fix/STEF-2854-handle-insufficient-training-data

Mar 19, 2026

Commits on Mar 18, 2026

fix(STEF-2854): fix combiner label/weight shape mismatch and Quantile serialization
egordm
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fix(STEF-2854): add Pydantic serializer to Quantile to suppress warnings
egordm
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fix(STEF-2854): raise InsufficientlyCompleteError for empty datasets in train/test split
egordm
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fix(STEF-2854): raise InsufficientlyCompleteError on empty combiner data after inner join
egordm
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feat(STEF-2854): add strict parameter to BenchmarkComparisonPipeline.run()
egordm
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fix(STEF-2854): use 'global' subdirectory for RUN_AND_GROUP analysis scope
egordm
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fix(STEF-2854): renormalize ensemble weights when base model predictions are NaN
egordm
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refactor(STEF-2854): extract nan_aware_weighted_mean helper
egordm
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feat(STEF-2854): add skip_analysis param to BenchmarkPipeline.run()
egordm
committed

Commits on Mar 19, 2026