Hi, <div>Yes, it's estimator.tree_.impurity<br><br>Nelson</div><div><br><div class="gmail_quote"><div dir="ltr">On Mon, Aug 29, 2016, 09:18 Ibrahim Dalal via scikit-learn <<a href="mailto:scikit-learn@python.org">scikit-learn@python.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Hi,<br><br></div>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?<br><br></div>Thanks<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 29, 2016 at 12:53 AM, Nelson Liu <span dir="ltr"><<a href="mailto:nfliu@uw.edu" target="_blank">nfliu@uw.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>That should be:</span><div><span style="font-size:13px">node indicator = estimator.tree_.</span><span style="font-size:13px">decision_path(X_test)</span></div><div><br></div><div>PR welcome :) <br><div dir="auto"><br><div class="gmail_quote"><span><div dir="ltr">On Sun, Aug 28, 2016, 13:12 Ibrahim Dalal via scikit-learn <<a href="mailto:scikit-learn@python.org" target="_blank">scikit-learn@python.org</a>> wrote:<br></div></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><div><div>Dear Developers,<br><br>DecisionTreeClassifier.decision_path() as used here <a href="http://scikit-learn.org/dev/auto_examples/tree/unveil_tree_structure.html" target="_blank">http://scikit-learn.org/dev/auto_examples/tree/unveil_tree_structure.html</a> is giving the following error:<br><br>AttributeError: 'DecisionTreeClassifier' object has no attribute 'decision_path'<br><br></div>Kindly help.<br><br></div>Thanks</div></div></div><span>
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