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[MRG] Allow nd array for CalibratedClassifierCV #13485

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jnothman merged 6 commits into from
Apr 4, 2019
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[MRG] Allow nd array for CalibratedClassifierCV #13485

jnothman merged 6 commits into from
Apr 4, 2019

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@wdevazelhes
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@wdevazelhes wdevazelhes commented Mar 21, 2019

Reference Issues/PRs

Fixes #13077

What does this implement/fix? Explain your changes.

This allows n-dimensional arrays for CalibratedClassifierCV (for instance, GridSearchCV allows for all kind of arrays, since it's a MetaEstimator and more precise tests are made by the encapsulated estimator itself). See #13077 for more details.

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wdevazelhes commented Mar 21, 2019

Is there a reason why CalibratedClassifierCV is not a Meta-Estimator ?

scikit-learn/sklearn/calibration.py

Line 31 in 7684298

class CalibratedClassifierCV(BaseEstimator, ClassifierMixin):

@wdevazelhes wdevazelhes changed the title Allow nd array for CalibratedClassifierCV [MRG] Allow nd array for CalibratedClassifierCV Mar 21, 2019
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jnothman commented Mar 21, 2019 via email

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jnothman commented Mar 21, 2019

Please add a non-regression test

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connorbrinton commented Apr 1, 2019 •
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@wdevazelhes You might be interested in this PR (by me) which should work with nd-array input (and also supports multi-label probability calibration). It includes tests which you can use if you'd like, to verify that input does not need to be 2d. However, it doesn't include any tests for arrays with more than two dimensions.

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wdevazelhes commented Apr 4, 2019 •
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@connorbrinton Thanks for the reference ! Great, yes indeed your PR would fix my problem with nd-array :)
I'll do a quick non-regression test that maybe can be easily/quickly merged so that you can merge it in your PR

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wdevazelhes commented Apr 4, 2019 •
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@jnothman I just added a non-regression test, let me know how it sounds

Is there a reason why CalibratedClassifierCV is not a Meta-Estimator ?

Probably no reason. MetaEstimatorMixin did very little until recently. Now it only does little.

Allright, I'll open a PR for that then
done: #13575

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jnothman commented Apr 4, 2019

Please merge latest master

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wdevazelhes commented Apr 4, 2019

Please merge latest master

Done

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jnothman commented Apr 4, 2019

Please add an |Enhancement| entry to the change log at doc/whats_new/v0.21.rst. Like the other entries there, please reference this pull request with :issue: and credit yourself (and other contributors if applicable) with :user:

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wdevazelhes commented Apr 4, 2019

Please add an |Enhancement| entry to the change log at doc/whats_new/v0.21.rst. Like the other entries there, please reference this pull request with :issue: and credit yourself (and other contributors if applicable) with :user:

done

@jnothman jnothman merged commit 11d4cf0 into scikit-learn:master Apr 4, 2019
jeremiedbb pushed a commit to jeremiedbb/scikit-learn that referenced this pull request Apr 25, 2019
@wdevazelhes @jeremiedbb
ENH Allow nd array for CalibratedClassifierCV (scikit-learn#13485)
1d03e13
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
@wdevazelhes
ENH Allow nd array for CalibratedClassifierCV (scikit-learn#13485)
de3836b
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
Revert "ENH Allow nd array for CalibratedClassifierCV (scikit-learn#1…
9ad040f 
…3485)"

This reverts commit de3836b.
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
Revert "ENH Allow nd array for CalibratedClassifierCV (scikit-learn#1…
8db0fd8 
…3485)"

This reverts commit de3836b.
koenvandevelde pushed a commit to koenvandevelde/scikit-learn that referenced this pull request Jul 12, 2019
@wdevazelhes @koenvandevelde
ENH Allow nd array for CalibratedClassifierCV (scikit-learn#13485)
cef6cd0
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Be more tolerant in check_array for CalibratedClassifierCV

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