training.transformation.custom_transformer transformation_function should receive and return Series, not dataframe #123
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documentation
Missing documentation or improvements in the existing one
PROBLEM FOUND IN DOCS:
The training.transformation.custom_transformer receives a transformation_function as parameter.
The docs say this transformation_function receives a pd.DataFrame and returns a pd.DataFrame but, in fact, it is receiving a pd.Series and returning a pd.Series.
The docs should be update to reflect the implemented behavior.
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