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HalvingRandomSearchCV and HalvingGridSearchCV do not support multimetric scoring. #26109

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gynther-k opened this issue Apr 5, 2023 · 2 comments
Open

HalvingRandomSearchCV and HalvingGridSearchCV do not support multimetric scoring. #26109

gynther-k opened this issue Apr 5, 2023 · 2 comments
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module:model_selection Needs Decision - Include Feature Requires decision regarding including feature New Feature

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@gynther-k
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According to https://scikit-learn.org/stable/modules/grid_search.html,

HalvingRandomSearchCV and HalvingGridSearchCV do not support multimetric scoring.

When will this be implemented?

When trying to use multimeric scoring today, I get:

ValueError: scoring parameter must be a string, a callable or None. Multimetric scoring is not supported.
@github-actions github-actions bot added the Needs Triage Issue requires triage label Apr 5, 2023
@NicolasHug
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For context on why multimetric scoring isn't supported for now: #13900 (comment)

@gynther-k
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@NicolasHug @jnothman do you know when we can expect a fix?

@thomasjpfan thomasjpfan changed the title GridSearchCV and HalvingGridSearchCV do not support multimetric scoring. HalvingRandomSearchCV and HalvingGridSearchCV do not support multimetric scoring. Apr 21, 2023
@thomasjpfan thomasjpfan added New Feature module:model_selection Needs Decision - Include Feature Requires decision regarding including feature and removed Needs Triage Issue requires triage labels Apr 21, 2023
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@NicolasHug @thomasjpfan @gynther-k