[BUG] fix BaggingClassifier
for column subsampling case
#6429
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Fixes #6427.
The problem was that
_predict_proba
did simply forget to subset columns ofX
.The bug was not detected as the base classifier used in tests was
DummyClassifier
, which ignoresX
, and hence misses the failures in column subsetting ofX
entirely.To cover the bug, the classifier was replaced by
SummaryClassifier.
.