29 Pull requests merged by 22 people

• MNT Use _add_to_diagonal in GaussianMixture

  #31607 merged Jun 20, 2025

• DOC Revise the math formatting for eta_0

  #31598 merged Jun 20, 2025

• Fix _fill_or_add_to_diagonal when reshape returns copy

  #31445 merged Jun 19, 2025

• FEA Add array API support for GaussianMixture

  #30777 merged Jun 19, 2025

• FIX fix comparison between array-like parameters when detecting non-default params for HTML representation

  #31528 merged Jun 19, 2025

• Improve whats_new doc

  #31589 merged Jun 19, 2025

• Array API support for pairwise kernels

  #29822 merged Jun 19, 2025

• DOC Add examples of make_scorer usage to fbeta_score docstring

  #28755 merged Jun 18, 2025

• DOC Fix example Recursive feature elimination with cross-validation

  #31516 merged Jun 18, 2025

• ENH: Make roc_curve array API compatible

  #30878 merged Jun 18, 2025

• Fix set CategoricalNB().__sklearn_tags__.input_tags.categorical to True

  #31556 merged Jun 18, 2025

• DOC: Improve Ridge regression example — fix typo, clarify title, add legend

  #31539 merged Jun 18, 2025

• BLD: use more modern way to specify license metadata

  #31560 merged Jun 18, 2025

• DOC fix formatting of intercept_scaling parameter in LogisticRegression-related docs

  #31577 merged Jun 18, 2025

• docs: implement responsive multi-column layout for emeritus contributors to reduce whitespace

  #31565 merged Jun 18, 2025

• Fix grammar: change 'relation' to 'relationship' in classification_th…

  #31570 merged Jun 18, 2025

• DOC:Add inline example link to RFECV class docstring (#30621)

  #31476 merged Jun 18, 2025

• MNT replace fetch_california_housing with make_regression in getting_started.rst and compose.rst

  #31579 merged Jun 18, 2025

• DOC add link to plot_cv_predict example in cross_val_predict doc

  #31504 merged Jun 18, 2025

• Doc add link plot robust vs empirical covariance examples

  #31511 merged Jun 18, 2025

• DOC: add link to the plot_mahalanobis_distances example

  #31485 merged Jun 18, 2025

• 🔒 🤖 CI Update lock files for main CI build(s) 🔒 🤖

  #31552 merged Jun 18, 2025

• 🔒 🤖 CI Update lock files for free-threaded CI build(s) 🔒 🤖

  #31550 merged Jun 18, 2025

• 🔒 🤖 CI Update lock files for array-api CI build(s) 🔒 🤖

  #31551 merged Jun 18, 2025

• 🔒 🤖 CI Update lock files for scipy-dev CI build(s) 🔒 🤖

  #31549 merged Jun 18, 2025

• Fix RocCurveDisplay docstring and parameter order

  #31578 merged Jun 18, 2025

• Doc #30621 Linked kernel_approximation example to Nystrom and RBFSampler in User Guide

  #31562 merged Jun 17, 2025

• MNT remove /take bot

  #31568 merged Jun 17, 2025

• FIX Draw indices using sample_weight in Bagging

  #31414 merged Jun 16, 2025

31 Pull requests opened by 24 people

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

  #31553 opened Jun 16, 2025

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

  #31557 opened Jun 16, 2025

• Adding more functionality to DecisionBoundaryDisplay #27462

  #31558 opened Jun 16, 2025

• FIX Add validation for FeatureUnion transformer outputs (#31318)

  #31559 opened Jun 16, 2025

• DOC add link to plot_multi_metric_evaluation in make scorer #30841

  #31561 opened Jun 16, 2025

• FIX Preserve y shape in TransformedTargetRegressor

  #31563 opened Jun 16, 2025

• ENH Adding a column to link each parameter docstring row in params table display

  #31564 opened Jun 17, 2025

• DOC: Add example link to plot_poisson_regression_non_normal_loss.py in linear_model docs (#30621)

  #31567 opened Jun 17, 2025

• Add example link to RandomForestClassifier docstring

  #31569 opened Jun 17, 2025

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

  #31573 opened Jun 17, 2025

• Fix: Use float64 epsilon when clipping initial probabilities in GradientBoosting

  #31575 opened Jun 17, 2025

• DOC add links to plot_polynomial_interpolation.py

  #31576 opened Jun 17, 2025

• ENH Add array API for PolynomialFeatures

  #31580 opened Jun 18, 2025

• DOC: Add seealso link to Ridge regression example in user guide (#30621)

  #31581 opened Jun 18, 2025

• Fix spurious warning from type_of_target when called on estimator.classes_

  #31584 opened Jun 18, 2025

• DOC improve doc for `_check_n_features` and `_check_feature_names` and fix their usages

  #31585 opened Jun 18, 2025

• DOC: add Visualization API ROC example link to model_evaluation

  #31591 opened Jun 19, 2025

• BLD fix missing license file

  #31594 opened Jun 19, 2025

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

  #31596 opened Jun 19, 2025

• doc/comment-nan-sort-behaviour-weighted-percentile

  #31597 opened Jun 19, 2025

• ENH: add plot_f1_baseline option to PrecisionRecallDisplay.plot

  #31600 opened Jun 20, 2025

• DOC: Add example link to RidgeClassifier docstring (#30621)

  #31602 opened Jun 20, 2025

• MNT Simplify inefficient regex

  #31603 opened Jun 20, 2025

• FIX convert indices passed into to pyarrow filter() to pyarrow type for older pyarrow versions

  #31605 opened Jun 20, 2025

• DOC: Add example link to LogisticRegression docstring

  #31606 opened Jun 20, 2025

• MAINT: make scipy-doctest usage forward-compatible

  #31609 opened Jun 20, 2025

• Fix: Replace np.bool_ with np_bool in _ranking.py

  #31612 opened Jun 20, 2025

• Add vector quantization example to KBinsDiscretizer docs

  #31613 opened Jun 20, 2025

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

  #31616 opened Jun 21, 2025

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

  #31617 opened Jun 21, 2025

• DOC Add link to plot_lasso_dense_vs_sparse_data in Lasso docstring (#30621)

  #31618 opened Jun 21, 2025

17 Issues closed by 5 people

• Intermittent HTTP 403 on fetch_california_housing and other Figshare hosted data on Azure CI

  #30761 closed Jun 19, 2025

• Compilation "neighbors/_kd_tree.pyx" crashes on ARM

  #31592 closed Jun 19, 2025

• Can't create exe-file with this module

  #31587 closed Jun 19, 2025

• Issue with the `RidgeCV` diagram representation with non-default alphas

  #31525 closed Jun 19, 2025

• DOC About Us page: multi-column list for emeritus contributors

  #31548 closed Jun 18, 2025

• Update project metadata to avoid using the deprecated way to declare the license.

  #30766 closed Jun 18, 2025

• Documentation improvement (LogisticRegression): display a note as a note

  #31572 closed Jun 18, 2025

• Several Doc improvement for whats_new

  #31571 closed Jun 18, 2025

• MNT Make binary display method parameters' order consistent

  #30717 closed Jun 18, 2025

• ⚠️ CI failed on Wheel builder (last failure: Jun 17, 2025) ⚠️

  #31566 closed Jun 17, 2025

• Support other dataframes like polars and pyarrow not just pandas

  #25896 closed Jun 16, 2025

• is_classifier returns False for custom classifier wrappers in scikit-learn 1.6.1, even with ClassifierMixin and _estimator_type

  #31555 closed Jun 16, 2025

• DOC: clarify the documentation for the loss functions used in GBRT, and Absolute Error in particular.

  #30339 closed Jun 16, 2025

• Issue: Unable to Apply Feature Engineering After Feature Transformation in a Pipeline

  #30453 closed Jun 16, 2025

• ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 2 dimensions. The detected shape was (6, 33810) + inhomogeneous part.

  #30546 closed Jun 16, 2025

• Unexpected behavior for subclassing `Pipeline`

  #30748 closed Jun 16, 2025

• Reference `ValidationCurveDisplay` from `validation_curve`'s docstring in a "See also section"

  #31302 closed Jun 16, 2025

9 Issues opened by 9 people

• (Perhaps) safer version of halving search

  #31608 opened Jun 20, 2025

• `_safe_indexing` fails with pyarrow==16.0.0

  #31604 opened Jun 20, 2025

• Implement row-wise prediction skipping

  #31601 opened Jun 20, 2025

• `_MultimetricScorer` deals with `_accept_sample_weights` inconsistently

  #31599 opened Jun 20, 2025

• Attribute docstring does not show properly when there is a property with the same name

  #31595 opened Jun 19, 2025

• scikit-learn API reference on the website not rendering LaTeX correctly

  #31593 opened Jun 19, 2025

• ⚠️ CI failed on Wheel builder (last failure: Jun 21, 2025) ⚠️

  #31590 opened Jun 19, 2025

• Unjustified "number of unique classes > 50%" warning in CalibratedClassifierCV

  #31583 opened Jun 18, 2025

• Allow batch based metrics calculation of sklearn.metrics

  #31554 opened Jun 16, 2025

60 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.

• Unbiased MDI-like feature importance measure for random forests

  #31279 commented on Jun 19, 2025 • 22 new comments

• MNT refactoring in routing _MetadataRequester

  #31534 commented on Jun 20, 2025 • 12 new comments

• FEA add temperature scaling to `CalibratedClassifierCV`

  #31068 commented on Jun 19, 2025 • 9 new comments

• DOC update and improve the `sample_weight` entry in the glossary

  #30564 commented on Jun 18, 2025 • 9 new comments

• FEA return final cross-validation score in SequentialFeatureSelector

  #31483 commented on Jun 18, 2025 • 7 new comments

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

  #30508 commented on Jun 21, 2025 • 7 new comments

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

  #31452 commented on Jun 18, 2025 • 6 new comments

• MNT Deprecate metrics.pairwise.paired_*_distances and paired_distances public functions

  #30537 commented on Jun 19, 2025 • 6 new comments

• Doc add link self training

  #31514 commented on Jun 16, 2025 • 3 new comments

• FEA Implement classical MDS

  #31322 commented on Jun 17, 2025 • 3 new comments

• DOC Improve docstrings for scikit-learn configuration functions

  #31486 commented on Jun 18, 2025 • 2 new comments

• feat: Add support for sample_weights in TargetEncoder

  #31324 commented on Jun 17, 2025 • 2 new comments

• adding adaptive learning rate for minibatch k-means

  #30051 commented on Jun 20, 2025 • 2 new comments

• ENH add `store_cv_models` option to `ElasticNetCV` #28726

  #31545 commented on Jun 15, 2025 • 1 new comment

• FIX Draw indices using sample_weight in Forest

  #31529 commented on Jun 19, 2025 • 1 new comment

• DOC: Add link to plot_sparse_coding.py in DictionaryLearning and Mini…

  #31472 commented on Jun 16, 2025 • 1 new comment

• DOC Clarify usage of d2_pinball_score with model selection tools

  #31239 commented on Jun 19, 2025 • 0 new comments

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

  #26711 commented on Jun 16, 2025 • 0 new comments

• FIX ConvergenceWarning in plot_gpr_on_structured_data (#31164)

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

• Adding more functionality to DecisionBoundaryDisplay

  #27462 commented on Jun 16, 2025 • 0 new comments

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

  #29734 commented on Jun 16, 2025 • 0 new comments

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

  #31362 commented on Jun 20, 2025 • 0 new comments

• ENH Make `GaussianProcessRegressor.predict` faster when return_std and return_cov are false

  #31431 commented on Jun 16, 2025 • 0 new comments

• ENH Display fitted attributes in HTML representation

  #31442 commented on Jun 19, 2025 • 0 new comments

• ENH: add option in OneVsRest classifier to handle undefined predictions

  #31448 commented on Jun 18, 2025 • 0 new comments

• List of estimators with known incorrect handling of `sample_weight`

  #16298 commented on Jun 16, 2025 • 0 new comments

• Wrong normalization for pseudolikelihood in Restricted Boltzmann Machine.

  #23179 commented on Jun 16, 2025 • 0 new comments

• FEA Implement categorical feature support to `IterativeImputer`

  #31479 commented on Jun 20, 2025 • 0 new comments

• RandomForest{Classifier,Regressor} split criterion documentation

  #27159 commented on Jun 16, 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 16, 2025 • 0 new comments

• DOC: Add example link to ElasticNet documentation

  #31490 commented on Jun 21, 2025 • 0 new comments

• Regression in `DecisionBoundaryDisplay.from_estimator` with `colors` and `plot_method='contour'` after upgrading to v1.7.0

  #31546 commented on Jun 16, 2025 • 0 new comments

• KBinsDiscretizer uniform strategy bin assignment wrong due to floating point multiplication

  #30924 commented on Jun 16, 2025 • 0 new comments

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

  #31540 commented on Jun 15, 2025 • 0 new comments

• ENH ascii visualisation for metadata routing

  #31535 commented on Jun 20, 2025 • 0 new comments

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

  #31543 commented on Jun 19, 2025 • 0 new comments

• ENH Add multi-threshold classification to FixedThresholdClassifier

  #31544 commented on Jun 20, 2025 • 0 new comments

• Add MultiHorizonTimeSeriesSplit for Multi-Horizon Time Series Cross-Validation

  #31344 commented on Jun 15, 2025 • 0 new comments

• SLEP006 - Metadata Routing task list

  #22893 commented on Jun 17, 2025 • 0 new comments

• Add Accumulated local effects (ALE) to inspection

  #30223 commented on Jun 17, 2025 • 0 new comments

• Request: base class with HTML repr but without being an 'Estimator'

  #30958 commented on Jun 17, 2025 • 0 new comments

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

  #26024 commented on Jun 18, 2025 • 0 new comments

• Make `_check_n_features` and `_check_feature_names` public

  #30389 commented on Jun 18, 2025 • 0 new comments

• no k-modes or k-prototypes algorithms in scikit-learn

  #17138 commented on Jun 18, 2025 • 0 new comments

• Revisit the "chance level" for the different displays

  #30352 commented on Jun 19, 2025 • 0 new comments

• Feat: DummyClassifier strategy that produces randomized probabilities

  #31462 commented on Jun 19, 2025 • 0 new comments

• Huber Loss for HistGradientBoostingRegressor

  #31542 commented on Jun 20, 2025 • 0 new comments

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

  #27846 commented on Jun 21, 2025 • 0 new comments

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

  #29802 commented on Jun 21, 2025 • 0 new comments

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

  #29909 commented on Jun 21, 2025 • 0 new comments

• Add links to examples from the docstrings and user guide

  #30621 commented on Jun 21, 2025 • 0 new comments

• Refactor `_convert_container`

  #28681 commented on Jun 20, 2025 • 0 new comments

• `FunctionTransformer` need `feature_names_out` even if `func` returns DataFrame

  #28780 commented on Jun 16, 2025 • 0 new comments

• TransformedTargetRegressor forces 1d y shape to regressor

  #26530 commented on Jun 16, 2025 • 0 new comments

• FeatureHasher and HashingVectorizer does not expose requires_fit=False tag

  #30689 commented on Jun 16, 2025 • 0 new comments

• ENH Array API support for confusion_matrix converting to numpy array

  #30562 commented on Jun 19, 2025 • 0 new comments

• ENH Add `pos_label` parameter to `TargetEncoder`

  #27342 commented on Jun 16, 2025 • 0 new comments

• 'Section Navigation' bar missing from stable documentation website on several pages

  #30309 commented on Jun 16, 2025 • 0 new comments

• Fix: added pseudo-likelihood normalization option in RBM #23179

  #31099 commented on Jun 16, 2025 • 0 new comments

• DOC merge dbscan, hdbcan, optics gallery examples into one example

  #31102 commented on Jun 18, 2025 • 0 new comments