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 >
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