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 <[email protected]> wrote: > Hi, > Yes, it's estimator.tree_.impurity > > Nelson > > On Mon, Aug 29, 2016, 09:18 Ibrahim Dalal via scikit-learn < > [email protected]> 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 <[email protected]> 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 < >>> [email protected]> 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 >>>> [email protected] >>>> https://mail.python.org/mailman/listinfo/scikit-learn >>>> >>> >>> _______________________________________________ >>> scikit-learn mailing list >>> [email protected] >>> https://mail.python.org/mailman/listinfo/scikit-learn >>> >>> >> _______________________________________________ >> scikit-learn mailing list >> [email protected] >> https://mail.python.org/mailman/listinfo/scikit-learn >> > > _______________________________________________ > scikit-learn mailing list > [email protected] > https://mail.python.org/mailman/listinfo/scikit-learn > >
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