Thanks Nelson. Is there any way to access number of training samples in a node? Thanks
On Mon, Aug 29, 2016 at 8:53 PM, Nelson Liu <nf...@uw.edu> wrote: > Hi, > Yes, it's estimator.tree_.impurity > > Nelson > > On Mon, Aug 29, 2016, 09:18 Ibrahim Dalal via scikit-learn < > scikit-learn@python.org> wrote: > >> Hi, >> >> Is there a way to extract impurity value of a node in >> DecisionTreeClassifier? I am able to get this value in graph (using >> export_grapgviz), but can't figure out how to get this value in my code. Is >> there any attribute similar to estimator.tree_.children_left? >> >> Thanks >> >> On Mon, Aug 29, 2016 at 12:53 AM, Nelson Liu <nf...@uw.edu> wrote: >> >>> That should be: >>> node indicator = estimator.tree_.decision_path(X_test) >>> >>> PR welcome :) >>> >>> On Sun, Aug 28, 2016, 13:12 Ibrahim Dalal via scikit-learn < >>> scikit-learn@python.org> wrote: >>> >>>> Dear Developers, >>>> >>>> DecisionTreeClassifier.decision_path() as used here >>>> http://scikit-learn.org/dev/auto_examples/tree/unveil_ >>>> tree_structure.html is giving the following error: >>>> >>>> AttributeError: 'DecisionTreeClassifier' object has no attribute >>>> 'decision_path' >>>> >>>> Kindly help. >>>> >>>> Thanks >>>> _______________________________________________ >>>> scikit-learn mailing list >>>> scikit-learn@python.org >>>> https://mail.python.org/mailman/listinfo/scikit-learn >>>> >>> >>> _______________________________________________ >>> scikit-learn mailing list >>> scikit-learn@python.org >>> https://mail.python.org/mailman/listinfo/scikit-learn >>> >>> >> _______________________________________________ >> scikit-learn mailing list >> scikit-learn@python.org >> https://mail.python.org/mailman/listinfo/scikit-learn >> > > _______________________________________________ > scikit-learn mailing list > scikit-learn@python.org > https://mail.python.org/mailman/listinfo/scikit-learn > >
_______________________________________________ scikit-learn mailing list scikit-learn@python.org https://mail.python.org/mailman/listinfo/scikit-learn
