Please provide the full traceback. Without it it's impossible to tell whether the problem is in scikit-learn or xgboost.
Also, please provide a minimal reproduction script as explained in: http://scikit-learn.org/stable/faq.html#what-s-the-best-way-to-get-help-on-scikit-learn-usage -- Olivier _______________________________________________ scikit-learn mailing list scikit-learn@python.org https://mail.python.org/mailman/listinfo/scikit-learn
