fixes doc formatting.

* Add missing mixins to ClassifierChain

* Fix import in test

Code from http://scikit-learn.org/stable/auto_examples/decomposition/plot_ica_blind_source_separation.html.

…scikit-learn#9108)

* change data, don't regularize, call plt.show

…#5893)

…-learn#7071)

)

…learn#9530)

- Fixes rendering of docstring examples
- Instead of importing cross_val_score in example, cross_validate is imported

…learn#9537)

Root URL responds with: `mysql://���:@localhost/nuke failed to connectAccess denied for user '���'@'localhost' (using password: YES)`

…lPCA uses float division (scikit-learn#9492)

* Ensures that partial_fit uses float division

* Switches to using future division for float division

* Adds non-regression test for issue scikit-learn#9489

* Updates test to remove dependence on a "known answer"

* Updates doc/whats_new.rst with entry for this PR

* Specifies bug fix is for Python 2 versions in doc/whats_new.rst

…talPCA (scikit-learn#9303)

…cikit-learn#9541)

…#10020)

…#10091)

Put calls to `clock()` inside conditional statements.

This helps combat thread contention when executing TSNE in sklearn, compiled with icc.

Running TSNE on MNIST dataset (training + validation + test) of 70_000 hand-written images 28 by 28 pixels each, time of TSNE drops from 92 seconds to 81 seconds from this change alone.

… vectors (scikit-learn#10095)

* add test for issue scikit-learn#10092

* add comment to test

* split into two tests

* add tests for scores, alpha and beta

* adapt tests: n_samples != n_features

* add test when no intercept is fitted

* add handling of constant target vector when intercept is fitted

* fix typo in comments

* fix format issues

* replace original fix with simpler fix

* add comment

* increase upper boundary for test

* increase upper boundary for test

* merge tests for ARDRegression and BayesianRidge

* use random state in tests

* decrease upper bound for std

* replace np.spacing(1) -> np.finfo(np.float64).eps

…cikit-learn#10045)

…rn#10066)

)

…arn#10080)

Also add examples/.flake8 for examples specific flake8 configuration

…rn#10132)

https://github.com/numpy/numpy/pull/9332/files change sign='legacy' to legacy=True in the np.set_printoptions arguments.