Hi David, I think you should have a look at sklearn.tree.export_graphviz. It will generate a picture of the tree for you. - Reference: http://scikit-learn.org/dev/modules/generated/sklearn.tree.export_graphviz.html#sklearn.tree.export_graphviz - Example: http://scikit-learn.org/dev/_images/iris.svg
If you need to inspect the tree yourself, have a look at the implementation of export_graphviz. - https://github.com/scikit-learn/scikit-learn/blob/master/sklearn/tree/tree.py#L48 Hope this helps, Gilles On 27 February 2013 08:19, David Montgomery <[email protected]> wrote: > Hi, > > I will be using a tree. All dependent variables are categorical ordinal. > > For each leaf node. I need to get the node id and a list of all attributes > that make up the path to the leaf node. E.g. > > > root_node > GEO: > NewYork > Boston,Philly > BOSTON:PHILLY->TIME: > 1PM > 2PM > > > The above is one path where the leaf node is TIME. The distinct rules that > make up the path are as follows > > Geo:[Boston:Philly]->Time:[1pm,2pm] > > > > > > How to I access the tree object so I can write code to get the keys and > values of each node that comprises a leaf node path? > > e.g. > > clf = tree.DecisionTreeRegressor() > clf = clf.fit(iris.data, iris.target) > mytree = clf.WHAT? > > Thanks > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_feb > _______________________________________________ > Scikit-learn-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/scikit-learn-general > ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ Scikit-learn-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
