DOC Fix misleading statement about model refitting in permutation importance docs #31596
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What does this implement/fix? Explain your changes.
The current documentation incorrectly states that the model is refitted during permutation importance in the
plot_forest_importances.pyexample. This PR corrects the description to clarify that the model is not refitted: predictions are made on permuted data to measure performance drop.Cc: @ogrisel @antoinebaker