My question is more along the lines of will the DT classifier falsely infer an ordering? <~~~~~~~~~~~~~~~~~~~~~~~~~~~> J. Andrew Howe, PhD www.andrewhowe.com http://www.linkedin.com/in/ahowe42 https://www.researchgate.net/profile/John_Howe12/ I live to learn, so I can learn to live. - me <~~~~~~~~~~~~~~~~~~~~~~~~~~~> On Wed, Mar 29, 2017 at 10:32 AM, Olivier Grisel <olivier.grisel@ensta.org> wrote:
For large enough models (e.g. random forests or gradient boosted trees ensembles) I would definitely recommend arbitrary integer coding for the categorical variables.
Try both, use cross-validation and see for yourself.
-- Olivier _______________________________________________ scikit-learn mailing list scikit-learn@python.org https://mail.python.org/mailman/listinfo/scikit-learn