[MRG+1] Ovr/OVO classifier decision_function shape fixes#9100
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vene merged 5 commits intoscikit-learn:masterfrom Jun 10, 2017
Merged
[MRG+1] Ovr/OVO classifier decision_function shape fixes#9100vene merged 5 commits intoscikit-learn:masterfrom
vene merged 5 commits intoscikit-learn:masterfrom
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Found via #8022. |
vene
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Jun 10, 2017
| """ | ||
| Y = self.decision_function(X) | ||
| if self.n_classes_ == 2: | ||
| return self.classes_[(Y > 0).astype(np.int)] |
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This assumes that estimators_[0].decision_function correctly returns a vector. Are we relying on check_estimator to validate this, or should we check it here?
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no we should assume that base_estimator actually works. Otherwise everything in sklearn is broken ;)
sklearn/tests/test_multiclass.py
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| y_pred = clf.predict(np.array([[0, 0, 4]]))[0] | ||
| assert_equal(set(y_pred), set("eggs")) | ||
| dec = clf.decision_function(X) | ||
| assert_equal(dec.shape, (5,)) |
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PEP8: missing space after comma
| # first binary | ||
| ovo_clf.fit(iris.data, iris.target == 0) | ||
| decisions = ovo_clf.decision_function(iris.data) | ||
| assert_equal(decisions.shape, (n_samples,)) |
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LGTM. 👍 |
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Aside from the PEP8 issues :) |
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LGTM +1 for merge when travis is happy |
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Jun 10, 2017
sklearn/tests/test_multiclass.py
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| assert_equal(set(y_pred), set("eggs")) | ||
| if hasattr(base_clf, 'decision_function'): | ||
| dec = clf.decision_function(X) | ||
| assert_equal(dec.shape, (5,)) |
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this breaks travis, line needs to be indented deeper
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green! @vene? |
Sundrique
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Jun 14, 2017
* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
dmohns
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Aug 7, 2017
* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
dmohns
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Aug 7, 2017
* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
NelleV
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Aug 11, 2017
* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
paulha
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Aug 19, 2017
* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
AishwaryaRK
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Aug 29, 2017
* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
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* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
jwjohnson314
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Dec 18, 2017
* fix OVR classifier edgecase bugs * add regression tests for OVO and OVR decision function shapes
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OVR Classifier had a
decision_functionshape of(n_samples, 1)for binary classification, OVO classifier had(n_samples, 2)!Fixed to conform to standard API.