Update PermutationFeatureImportance to select samples using fraction#341
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… max_samples_fraction
…ion feature importance tests
cristian-tamblay
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Oct 23, 2025
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This pull request updates the
PermutationFeatureImportanceexplainer to use a fractional value for the number of samples drawn from the test set, instead of an absolute count. This makes the explainer more flexible and better suited for datasets of varying sizes. The parameter and its usage are renamed and refactored throughout the code and schema.Parameter and schema changes:
max_samples(absolute integer) tomax_samples_fraction(float between 0.0 and 1.0) in thePermutationFeatureImportanceSchemaand throughout the explainer class.n_repeatsfrom 10 to 20 for more robust permutation calculations.