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[MRG] BUG Fixes constrast in plot_confusion_matrix #15936



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thomasjpfan commented Dec 20, 2019

Reference Issues/PRs

Fixes #15920

What does this implement/fix? Explain your changes.

The threshold should be based on the midpoint.

thomasjpfan added 2 commits Dec 20, 2019
@thomasjpfan thomasjpfan added this to the 0.22.1 milestone Dec 20, 2019
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glemaitre left a comment

LGTM. Thanks @thomasjpfan


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glemaitre commented Dec 21, 2019

@ogrisel you can have a look at it. This would be nice to have in 0.22.1

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ogrisel left a comment

LGTM, thanks for the fix @thomasjpfan and @DizietAsahi.

@ogrisel ogrisel merged commit b42125b into scikit-learn:master Dec 21, 2019
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ogrisel added a commit to ogrisel/scikit-learn that referenced this pull request Dec 31, 2019
ogrisel added a commit to ogrisel/scikit-learn that referenced this pull request Jan 2, 2020
ogrisel added a commit that referenced this pull request Jan 2, 2020
* DOC fixed default values in dbscan (#15753)

* DOC fix incorrect branch reference in contributing doc (#15779)

* DOC relabel Feature -> Efficiency in change log (#15770)

* DOC fixed Birch default value (#15780)

* STY Minior change on code padding in website theme (#15768)

* DOC Fix yticklabels order in permutation importances example (#15799)

* Fix yticklabels order in permutation importances example

* STY Update wrapper width (#15793)

* DOC Long sentence was hard to parse and ambiguous in (#15769)

* DOC Removed duplicate 'classes_' attribute in Naive Bayes classifiers (#15811)

* BUG Fixes pandas dataframe bug with boolean dtypes (#15797)

* BUG Returns only public estimators in all_estimators (#15380)

* DOC improve doc for multiclass and types_of_target (#15333)

* TST Increases tol for check_pca_float_dtype_preservation assertion (#15775)

* update _alpha_grid class in (#15835)

* FIX Explicit conversion of ndarray to object dtype. (#15832)

* BLD Parallelize sphinx builds on circle ci (#15745)

* DOC correct url for preprocessing (#15853)

* MNT avoid generating too many cross links in examples (#15844)

* DOC Correct wrong doc in precision_recall_fscore_support (#15833)

* DOC add comment in check_pca_float_dtype_preservation (#15819)

Documenting the changes in #15775

* DOC correct indents in docstring (#15843)

* DOC fix docstring of KMeans based on sklearn guideline (#15754)

* DOC fix docstring of AgglomerativeClustering based on sklearn guideline (#15764)

* DOC fix docstring of AffinityPropagation based on sklearn guideline (#15777)

* DOC fixed SpectralCoclustering and SpectralBiclustering docstrings following sklearn guideline (#15778)

* DOC fix FeatureAgglomeration and MiniBatchKMeans docstring following sklearn guideline (#15809)

* TST Specify random_state in test_cv_iterable_wrapper (#15829)

* DOC Include LinearSV{C, R} in models that support sample_weights (#15871)

* DOC correct some indents (#15875)

* DOC Fix documentation of default values in tree classes (#15870)

* DOC fix typo in docstring (#15887)

* DOC FIX default value for xticks_rotation in plot_confusion_matrix (#15890)

* Fix imports in pip3 ubuntu by suffixing affected files (#15891)

* MNT Raise erorr when normalize is invalid in confusion_matrix (#15888)

* [MRG] DOC Increases search results for API object results (#15574)

* MNT Ignores warning in pyamg for deprecated scipy.random (#15914)

* DOC Instructions to troubleshoot Windows path length limit (#15916)

* DOC add versionadded directive to some estimators (#15849)

* DOC clarify doc-string of roc_auc_score and add references (#15293)

* MNT Adds skip lint to azure pipeline CI (#15904)

* BLD Fixes bug when building with NO_MATHJAX=1 (#15892)

* [MRG] BUG Checks to number of axes in passed in ax more generically (#15760)

* EXA Minor fixes in (#15925)

* BUG Do not shadow public functions with deprecated modules (#15846)

* Import sklearn._distributor_init first (#15929)

* DOC Fix typos, via a Levenshtein-style corrector (#15923)

* DOC in canned comment, mention that PR title becomes commit me… (#15935)

* DOC/EXA Correct spelling of "Classification" (#15938)

* BUG fix pip3 ubuntu update by suffixing file (#15928)

* [MRG] Ways to compute center_shift_total were different in "full" and "elkan" algorithms. (#15930)

* TST Fixes integer test for train and test indices (#15941)

* BUG ensure that parallel/sequential give the same permutation importances (#15933)

* Formatting fixes in changelog (#15944)

* MRG FIX: order of values of self.quantiles_ in QuantileTransformer (#15751)

* [MRG] BUG Fixes constrast in plot_confusion_matrix (#15936)

* BUG use zero_division argument in classification_report (#15879)

* DOC change logreg solver in plot_logistic_path (#15927)

* DOC fix whats new ordering (#15961)

* COSMIT use np.iinfo to define the max int32 (#15960)

* DOC Apply numpydoc validation to VotingRegressor methods (#15969)

Co-authored-by: Tiffany R. Williams <>

* DOC improve documentation (#15943)

Co-authored-by: Jigna Panchal <>

* DOC Fix default values in Perceptron documentation (#15965)

* DOC Improve default values in logistic documentation (#15966)

Co-authored-by: Guillaume Lemaitre <>

* DOC Improve documentation of default values for imputers (#15964)

* EXA/MAINT Simplify code in manifold learning example (#15949)

* DOC Improve default values in SGD documentation (#15967)

* DOC Improve defaults in neural network documentation (#15968)

* FIX use safe_sparse_dot for callable kernel in LabelSpreading (#15868)

* BUG Adds attributes back to check_is_fitted (#15947)

Co-authored-by: Olivier Grisel <>

* DOC update check_is_fitted what's new

* DOC change python-devel to python3-devel for yum. (#15986)

* DOC Correct the default value of values_format in plot_confusion_matrix (#15981)

* [MRG] MNT Updates pypy to use 7.2.0 (#15954)

* FIX Add missing 'values_format' param to disp.plot() in plot_confusion_matrix (#15937)

* FIX support scalar values in fit_params in SearchCV (#15863)

* support a scalar fit param

* pep8

* TST add test for desired behavior

* FIX introduce _check_fit_params to validate parameters

* DOC update whats new

* TST tests both grid-search and randomize-search

* PEP8

* DOC revert unecessary change

* TST add test for _check_fit_params

* olivier comments

* TST fixes

* DOC whats new

* DOC whats new

* TST revert type of error

* add olivier suggestions

* address olivier comments

* address thomas comments

* PEP8

* comments olivier

* TST fix test by passing X

* avoid to call twice tocsr

* add case column/row sparse in check_fit_param

* provide optional indices

* TST check content when indexing params

* PEP8

* TST update tests to check identity

* stupid fix

* use a distribution in RandomizedSearchCV

* MNT add lightgbm to one of the CI build

* move to another build

* do not install dependencies lightgbm

* MNT comments on the CI setup

* address some comments

* Test fit_params compat without dependency on lightgbm

Co-authored-by: Guillaume Lemaitre <>
Co-authored-by: Olivier Grisel <>

* Remove abstractmethod that silently brake downstream packages (#15996)

* FIX restore BaseNB._check_X without abstractmethod decoration (#15997)

* Update v0.22 changelog for 0.22.1 (#16002)

- set the date
- move entry for quantile transformer to the 0.22.1 section
- fix alphabetical ordering of modules

* STY Removes hidden scroll bar (#15999)

* Flake8 fixes

* Fix: remove left-over lines that should have been deleted during conflict resolution when rebasing

* Fix missing imports

* Update version

* Fix test_check_is_fitted

* Make test_sag_regressor_computed_correctly deterministic (#16003)

Fix #15818.

Co-authored-by: cgsavard <>
Co-authored-by: Joel Nothman <>
Co-authored-by: Thomas J Fan <>
Co-authored-by: Matt Hall <>
Co-authored-by: Kathryn Poole <>
Co-authored-by: lucyleeow <>
Co-authored-by: JJmistry <>
Co-authored-by: Juan Carlos Alfaro Jiménez <>
Co-authored-by: SylvainLan <>
Co-authored-by: Nicolas Hug <>
Co-authored-by: Hanmin Qin <>
Co-authored-by: Adrin Jalali <>
Co-authored-by: Vachan D A <>
Co-authored-by: Sambhav Kothari <>
Co-authored-by: wenliwyan <>
Co-authored-by: shivamgargsya <>
Co-authored-by: Reshama Shaikh <>
Co-authored-by: Oliver Urs Lenz <>
Co-authored-by: Loïc Estève <>
Co-authored-by: Brian Wignall <>
Co-authored-by: Ritchie Ng <>
Co-authored-by: Guillaume Lemaitre <>
Co-authored-by: inderjeet <>
Co-authored-by: scibol <>
Co-authored-by: Tirth Patel <>
Co-authored-by: Bibhash Chandra Mitra <>
Co-authored-by: Alexandre Gramfort <>
Co-authored-by: Tiffany R. Williams <>
Co-authored-by: Jigna Panchal <>
Co-authored-by: @nkish <>
Co-authored-by: Pulkit Mehta <>
Co-authored-by: David Breuer <>
Co-authored-by: Niklas <>
Co-authored-by: Windber <>
Co-authored-by: Stephen Blystone <>
Co-authored-by: Brigitta Sipőcz <>
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