scikit-learn/scikit-learn — pull request #2007 by kmike (2013-05-27 13:37:48+00:00)
Title: Better support for feature transformation pipelines

Hi,

Pipeline.get_feature_names() method is added in this pull request. This fixes FeatureUnion.get_feature_names() when one of transformers is a Pipeline.

I tried to provide an example in tests. I'm not entirely sure there is no a better way to write the code in example - please double-check it.