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 <nfliu@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 <nfliu@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.
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