sply88

[MRG] Fix plot_gaussian_process not working with ps-acquisition

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The `plot_gaussian_process` function fails if a per-second acquisition function (e.g. EIps or PIps) is used. This is caused by passing the `return_std=True` argument to the `predict` method of the multioutput...

Two tests for DeltaYStopper with the *_minimize functions added to test_common.py. Tests use an objective that always returns values within an interval less than `delta` and asserts the expected number...

TST use global_random_seed in sklearn/utils/tests/test_optimize.py

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Towards #22827 I modified the only test in [sklearn/utils/tests/test_optimize.py](https://github.com/scikit-learn/scikit-learn/blob/main/sklearn/utils/tests/test_optimize.py) to use the `global_random_seed` fixture. Required changes were minimal: Just replaced the previously fixed seed with `global_random_seed` and pass the fixture...