scikit-learn/scikit-learn — pull request #3776 by doxav (2014-10-15 22:19:03+00:00)
Title: dict_vectorizer: added inverse_onehot to original feature names + updatable vectorizer dict

added features to:
- allow inverse onehot names to original names.
- allow to re-use existing dict when using fit_transform multiple times to allow to update it and stay compatible with previous encoding.