GroupKFold: Use stable sort to produce consistent splits across installs #28464
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The use of np.argsort with unstable sorting results in different splits across installations. This one is hard to write a test for since the splits will always be consistent with multiple runs in the same environment. Ideas of how to test this would be appreciated, but perhaps it's a simple enough change to motivate without a failing test.
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The use of np.argsort with unstable sorting results in different splits across installations. This one is hard to write a test for since the splits will always be consistent with multiple runs in the same environment. Ideas of how to test this would be appreciated, but perhaps it's a simple enough change to motivate without a failing test.