FIX correct NeighborhoodComponentsAnalysis (NCA) _n_features_out value
#28306
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@glemaitre friendly ping here: is this fix still needed? |
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I have to make a deeper review but we need to add a new non-regression test to reproduce the failure seen in the issue and make sure that the changes are fixing it. We also need to add an entry in the changelog under the 1.4.2 version. I'll add the milestone. |
glemaitre
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Feb 19, 2024
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glemaitre
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So you can add this entry in the 1.4.2 changelog:
:mod:`sklearn.neighbors`
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- |Fix| Fixes :class:`neighbors.NeighborhoodComponentsAnalysis` such that
`get_feature_names_out` returns the correct number of feature names.
:pr:`28306` by :user:`Brendan Lu <brendanlu>`.
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Reference Issues/PRs
Fixes #28293
What does this implement/fix? Explain your changes.
Implements the changes as suggested by @johentsch, similar to the base pca class.
Any other comments?
Adjusted the (faulty?) existing test logic to pick this issue up.