14 Pull requests merged by 10 people

• ENH avoid np.square(X) in enet_coordinate_descent to save memory

  #31665 merged Jun 27, 2025

• MNT fix typo in changelog of #31414

  #31661 merged Jun 27, 2025

• Add array API tests for pairwise_distances

  #31658 merged Jun 26, 2025

• DOC Clarify how mixed array input types handled in array api

  #31452 merged Jun 26, 2025

• feat: support Intel GPUs in Array API testing

  #31650 merged Jun 26, 2025

• Fix make_swiss_roll docstring to resolve a copyright ambiguity

  #31646 merged Jun 26, 2025

• FIX use pyarrow types in pyarrow.filter() for older pyarrow versions

  #31605 merged Jun 26, 2025

• ENH Add support for np.nan values in SplineTransformer

  #28043 merged Jun 26, 2025

• FIX GaussianMixture sample method to correctly handle mps

  #31639 merged Jun 26, 2025

• CI Avoid Windows timeout by switching to OpenBLAS

  #31641 merged Jun 26, 2025

• MNT Fix typos in pairwise tests

  #31651 merged Jun 25, 2025

• DOC Fix misleading statement about model refitting in permutation importance docs

  #31596 merged Jun 24, 2025

• GOV more pragmatic decision making process for small PRs

  #31430 merged Jun 23, 2025

• MNT Simplify inefficient regex

  #31603 merged Jun 23, 2025

21 Pull requests opened by 16 people

• DOC The set {0,1} should be \{0, 1\} in math mode

  #31622 opened Jun 22, 2025

• CI Move some pip_dependencies to conda_dependencies

  #31623 opened Jun 22, 2025

• DOC Removed examples/semi_supervised/plot_semi_supervised_versus_svm_iris.py

  #31625 opened Jun 22, 2025

• DOC CountVectorizer: Add note on List[int] memory usage for #13062

  #31627 opened Jun 22, 2025

• :lock: :robot: CI Update lock files for free-threaded CI build(s) :lock: :robot:

  #31629 opened Jun 23, 2025

• :lock: :robot: CI Update lock files for scipy-dev CI build(s) :lock: :robot:

  #31630 opened Jun 23, 2025

• :lock: :robot: CI Update lock files for array-api CI build(s) :lock: :robot:

  #31631 opened Jun 23, 2025

• :lock: :robot: CI Update lock files for main CI build(s) :lock: :robot:

  #31632 opened Jun 23, 2025

• DOC Add example link to plot_rfe_digits.py in RFE docstring

  #31636 opened Jun 23, 2025

• DOC Add example link to plot_gradient_boosting_regularization.py in GradientBoostingClassifier docstring

  #31638 opened Jun 23, 2025

• DOC fix minor typo in `TimeSeriesSplit` docstrings

  #31640 opened Jun 23, 2025

• MNT Remove deprecated `iprint` and `disp` usage in scipy 1.15 LBFGS

  #31642 opened Jun 24, 2025

• MNT instruct AI tools to not open pull requests in github PULL_REQUEST_TEMPLATE.md

  #31643 opened Jun 24, 2025

• #31635 FIX ensure proper point dropping in roc_curve with drop_interm…

  #31647 opened Jun 24, 2025

• FIX metadata routing for scorer

  #31654 opened Jun 25, 2025

• bump min dependencies anticipating next major release on 2025-11-01

  #31656 opened Jun 25, 2025

• DOC Increase prominence of starting from existing issues

  #31660 opened Jun 25, 2025

• DOC Fixed minor typo: "multiclasss" -> "multiclass"

  #31667 opened Jun 27, 2025

• DOC fix typo and improve whatsnew of #31665

  #31669 opened Jun 27, 2025

• ENH add Array API support for `d2_pinball_score` and `d2_absolute_error_score`

  #31671 opened Jun 28, 2025

• Add requires_fit=False tag to FeatureHasher and HashingVectorizer

  #31673 opened Jun 28, 2025

6 Issues closed by 5 people

• Clarification of output array type when metrics accept multiclass/multioutput

  #31286 closed Jun 26, 2025

• Contains code not allowed for commercial use

  #31390 closed Jun 26, 2025

• `_safe_indexing` fails with pyarrow==16.0.0

  #31604 closed Jun 26, 2025

• Handle np.nan / missing values in SplineTransformer

  #26793 closed Jun 26, 2025

• Implement row-wise prediction skipping

  #31601 closed Jun 24, 2025

• ENH: Add MedianAbsoluteDeviationScaler (MADScaler) to sklearn.preprocessing

  #31620 closed Jun 21, 2025

10 Issues opened by 9 people

• ENH Add clip parameter to MaxAbsScaler

  #31672 opened Jun 28, 2025

• memory leak for QuantileTransformer

  #31668 opened Jun 27, 2025

• Metadata not routed to transformers in pipeline during cross validation.

  #31659 opened Jun 25, 2025

• DOC Managing huntr security vulnerability reports

  #31657 opened Jun 25, 2025

• DOC About Us page - clarify team descriptions

  #31653 opened Jun 25, 2025

• Two bugs in `sklearn.metrics.roc_curve`: `drop_intermediate=True` option

  #31635 opened Jun 23, 2025

• Check `pos_label` present in `y_true` in metric functions

  #31633 opened Jun 23, 2025

• DOC: Glossary contains several FIXME tags

  #31628 opened Jun 23, 2025

• ⚠️ CI failed on Linux_Nightly.pylatest_pip_scipy_dev (last failure: Jun 28, 2025) ⚠️

  #31624 opened Jun 22, 2025

• ENH: Add MedianAbsoluteDeviationScaler (MADScaler) to sklearn.preprocessing

  #31621 opened Jun 21, 2025

64 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• ENH Add array API for PolynomialFeatures

  #31580 commented on Jun 27, 2025 • 13 new comments

• FEA Implement classical MDS

  #31322 commented on Jun 27, 2025 • 7 new comments

• adding adaptive learning rate for minibatch k-means

  #30051 commented on Jun 27, 2025 • 7 new comments

• Add title to DecisionBoundaryDisplay

  #31558 commented on Jun 28, 2025 • 7 new comments

• DOC Improve docstrings for scikit-learn configuration functions

  #31486 commented on Jun 26, 2025 • 5 new comments

• DOC improved plot_semi_supervised_newsgroups.py example

  #31104 commented on Jun 24, 2025 • 5 new comments

• ENH add `from_cv_results` in `PrecisionRecallDisplay` (single Display)

  #30508 commented on Jun 23, 2025 • 3 new comments

• FIX Draw indices using sample_weight in Forest

  #31529 commented on Jun 27, 2025 • 2 new comments

• Unbiased MDI-like feature importance measure for random forests

  #31279 commented on Jun 25, 2025 • 1 new comment

• FEA return final cross-validation score in SequentialFeatureSelector

  #31483 commented on Jun 23, 2025 • 0 new comments

• FEA Implement categorical feature support to `IterativeImputer`

  #31479 commented on Jun 22, 2025 • 0 new comments

• DOC add links to plot_ridge_coeffs example

  #31454 commented on Jun 22, 2025 • 0 new comments

• MNT refactor _rescale_data in linear models into _preprocess_data

  #31418 commented on Jun 26, 2025 • 0 new comments

• DOC Add Links to plot_lof_novelty_detection example

  #31405 commented on Jun 25, 2025 • 0 new comments

• Add reference to biclustering example in biclustering.rst documentation

  #31393 commented on Jun 25, 2025 • 0 new comments

• ENH add sample_weight and fit_intercept to Cython enet_coordinate_descent

  #31375 commented on Jun 26, 2025 • 0 new comments

• TST use global_random_seed in `sklearn/linear_model/tests/test_logistic.py`

  #31362 commented on Jun 23, 2025 • 0 new comments

• FIX ConvergenceWarning in plot_gpr_on_structured_data (#31164)

  #31289 commented on Jun 21, 2025 • 0 new comments

• No hyperparameter optimization example/tutorial incorporating warmstart

  #16371 commented on Jun 22, 2025 • 0 new comments

• DOC: Add example link to ElasticNet documentation

  #31490 commented on Jun 27, 2025 • 0 new comments

• Add stricter gradient check for log marginal likelihood in Gaussian Processes

  #31543 commented on Jun 22, 2025 • 0 new comments

• ENH Add multi-threshold classification to FixedThresholdClassifier

  #31544 commented on Jun 26, 2025 • 0 new comments

• FIX: Regression in DecisionBoundaryDisplay.from_estimator with colors and plot_method='contour'

  #31553 commented on Jun 21, 2025 • 0 new comments

• MNT: mark FeatureHasher and HashingVectorizer with requires_fit=False…

  #31557 commented on Jun 23, 2025 • 0 new comments

• DOC add link to plot_multi_metric_evaluation in make scorer #30841

  #31561 commented on Jun 24, 2025 • 0 new comments

• FIX `FunctionTransformer.get_feature_names_out` when output is set to dataframe

  #31573 commented on Jun 26, 2025 • 0 new comments

• DOC add links to plot_polynomial_interpolation.py

  #31576 commented on Jun 25, 2025 • 0 new comments

• [MRG] DOC: add Visualization API ROC example link to model_evaluation

  #31591 commented on Jun 25, 2025 • 0 new comments

• BLD fix missing license file

  #31594 commented on Jun 24, 2025 • 0 new comments

• [MRG] ENH: add plot_f1_baseline option to PrecisionRecallDisplay.plot

  #31600 commented on Jun 22, 2025 • 0 new comments

• DOC: Add example link to LogisticRegression docstring

  #31606 commented on Jun 25, 2025 • 0 new comments

• Add vector quantization example to KBinsDiscretizer docs

  #31613 commented on Jun 25, 2025 • 0 new comments

• DOC Add link to plot_lasso_coordinate_descent_path in lasso_path docstring(#30621)

  #31616 commented on Jun 21, 2025 • 0 new comments

• DOC Add link to plot_lasso_lars_ic in LassoLarsIC docstring (#30621)

  #31617 commented on Jun 21, 2025 • 0 new comments

• Re-evaluate memory usage in CountVectorizer

  #13062 commented on Jun 22, 2025 • 0 new comments

• Make `sklearn.metrics._scorer._MultimetricScorer` part of the public API

  #31540 commented on Jun 22, 2025 • 0 new comments

• `ValueError` raised by `FeatureUnion._set_output` with `FunctionTransform` that outputs a pandas `Series` in scikit-learn version 1.6

  #31318 commented on Jun 22, 2025 • 0 new comments

• Build in an option to change the "positive" class in sklearn.metrics.precision_recall_curve and sklearn.metrics.roc_curve

  #26758 commented on Jun 23, 2025 • 0 new comments

• pos_label in PrecisionRecallDisplay and RocCurveDisplay

  #18101 commented on Jun 23, 2025 • 0 new comments

• Allow batch based metrics calculation of sklearn.metrics

  #31554 commented on Jun 23, 2025 • 0 new comments

• `_MultimetricScorer` deals with `_accept_sample_weights` inconsistently

  #31599 commented on Jun 23, 2025 • 0 new comments

• AttributeError: This 'LabelEncoder' has no attribute 'set_output'

  #26711 commented on Jun 24, 2025 • 0 new comments

• Default argument pos_label=1 is not ignored in f1_score metric for multiclass classification

  #29734 commented on Jun 24, 2025 • 0 new comments

• Routing metadata to the `response_method` used by a scorer

  #27977 commented on Jun 25, 2025 • 0 new comments

• RFC/API (Array API) mixing devices and data types with estimators

  #26083 commented on Jun 25, 2025 • 0 new comments

• Some ideas for breaking changes for 2.0

  #28394 commented on Jun 26, 2025 • 0 new comments

• Make more of the "tools" of scikit-learn Array API compatible

  #26024 commented on Jun 27, 2025 • 0 new comments

• Huber Loss for HistGradientBoostingRegressor

  #31542 commented on Jun 27, 2025 • 0 new comments

• LogisticRegression freezed when X containing large number

  #7486 commented on Jun 27, 2025 • 0 new comments

• Add links to examples from the docstrings and user guide

  #30621 commented on Jun 27, 2025 • 0 new comments

• RandomForest{Classifier,Regressor} split criterion documentation

  #27159 commented on Jun 27, 2025 • 0 new comments

• ⚠️ CI failed on Ubuntu_Atlas.ubuntu_atlas (last failure: Feb 19, 2025) ⚠️

  #27846 commented on Jun 28, 2025 • 0 new comments

• ⚠️ CI failed on Linux_Docker.debian_32bit (last failure: Apr 19, 2025) ⚠️

  #29802 commented on Jun 28, 2025 • 0 new comments

• ⚠️ CI failed on Linux.pymin_conda_forge_openblas_min_dependencies (last failure: Jan 19, 2025) ⚠️

  #29909 commented on Jun 28, 2025 • 0 new comments

• ⚠️ CI failed on Wheel builder (last failure: Jun 28, 2025) ⚠️

  #31590 commented on Jun 28, 2025 • 0 new comments

• Improve sample_weight handling in sag(a)

  #31536 commented on Jun 28, 2025 • 0 new comments

• Fix #29715: Removed >= in line 225 of manifold/_locally_linear

  #29716 commented on Jun 26, 2025 • 0 new comments

• DOC add a link to GitHub Discussions on home page

  #30089 commented on Jun 27, 2025 • 0 new comments

• DOC add link to cluster_plot_ward_structured_vs_unstructured in _aggl…

  #30861 commented on Jun 25, 2025 • 0 new comments

• DOC: add link to example plot_digits_agglomeration.py

  #30979 commented on Jun 25, 2025 • 0 new comments

• Enhance ValidationCurveDisplay for categorical parameters

  #31043 commented on Jun 26, 2025 • 0 new comments

• DOC Merge plot_svm_margin.py and plot_separating_hyperplane.py into plot_svm_hyperplane_margin.py

  #31045 commented on Jun 27, 2025 • 0 new comments

• Add parameter to train_test_split for deterministic splitting and tests

  #31097 commented on Jun 26, 2025 • 0 new comments

• Add `sample_weight` support for `QuantileTransformer` when fit on dense data

  #31147 commented on Jun 26, 2025 • 0 new comments