MAINT Remove sparse_threshold

INRIA / scikit-learn-mooc

Machine learning in Python with scikit-learn MOOC

https://inria.github.io/scikit-learn-mooc

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MAINT Remove sparse_threshold #736

Closed ArturoAmorQ closed 1 year ago

ArturoAmorQ commented 1 year ago

Fixes #476.

The fact that HistGradientBoostingClassifier does not support sparse data is not a problem when used along with OrdinalEncoder inside a pipelines. This PR simplifies the code by removing the sparse_threshold=0 parameter from the ColumnTransformer.