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Change the default value to LinearRegression(positive=True) in the constructor of StackingEnsemble #1238

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Apr 21, 2023
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Change the default value to LinearRegression(positive=True) in the constructor of StackingEnsemble #1238

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1909a52
Change the default value of Linear Regression in the constructor of S…
ostreech1997 Apr 20, 2023
c494028
Set the default value to in the constructor of ([#1238](https://git…
ostreech1997 Apr 20, 2023
0504587
Update CHANGELOG.md
ostreech1997 Apr 21, 2023
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4 changes: 2 additions & 2 deletions CHANGELOG.md
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Expand Up @@ -12,8 +12,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
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### Changed
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- Set the default value of `final_model` to `LinearRegression(positive=True)` in the constructor of `StackingEnsemble` ([#1238](https://github.com/tinkoff-ai/etna/pull/1238))
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### Fixed
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2 changes: 1 addition & 1 deletion etna/ensembles/stacking_ensemble.py
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Expand Up @@ -92,7 +92,7 @@ def __init__(
"""
self._validate_pipeline_number(pipelines=pipelines)
self.pipelines = pipelines
self.final_model = LinearRegression() if final_model is None else final_model
self.final_model = LinearRegression(positive=True) if final_model is None else final_model
self._validate_backtest_n_folds(n_folds)
self.n_folds = n_folds
self.features_to_use = features_to_use
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