Fix macro average calculation in geometric_mean_score for binary classification#1164
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shubhrai23 wants to merge 2 commits intoscikit-learn-contrib:masterfrom
Open
Fix macro average calculation in geometric_mean_score for binary classification#1164shubhrai23 wants to merge 2 commits intoscikit-learn-contrib:masterfrom
shubhrai23 wants to merge 2 commits intoscikit-learn-contrib:masterfrom
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Geometric_mean_score with average='macro' was incorrect for binary classification (it was calculating the arithmetic mean of scores instead of the geometric mean of sensitivity and specificity).
Added a check to handle binary cases correctly while preserving multiclass behavior.
Added a regression test.