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@cakedev0 cakedev0 commented Nov 12, 2025

Reference Issues/PRs

CI for this PR will fail as long as #32700 isn't fixed because impurity decrease calculation is buggy, as stated here #32707

What does this implement/fix? Explain your changes.

  • Parameterize the test to test all criteria.
  • Greatly simplify the test.

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github-actions bot commented Nov 12, 2025

✔️ Linting Passed

All linting checks passed. Your pull request is in excellent shape! ☀️

Generated for commit: e0a9611. Link to the linter CI: here

@cakedev0 cakedev0 force-pushed the fix/impurity_decrease branch from 3c39e1d to 65eb742 Compare November 12, 2025 19:08
@cakedev0 cakedev0 changed the title [WIP] FIX: fix min_impurity_decrease for friedman_mse & MAE criterion [WIP] FIX: fix min_impurity_decrease for friedman_mse criterion Nov 12, 2025
@cakedev0 cakedev0 changed the title [WIP] FIX: fix min_impurity_decrease for friedman_mse criterion TST: trees: run test test_min_impurity_decrease for all criteria Nov 13, 2025
@cakedev0 cakedev0 changed the title TST: trees: run test test_min_impurity_decrease for all criteria TST: trees: run test_min_impurity_decrease for all criteria Nov 13, 2025
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