Re: [R] randomForest get tree

From: Liaw, Andy <andy_liaw_at_merck.com>
Date: Tue, 11 Mar 2008 14:38:10 -0400

Graphing: Not really. You might do somw work and get Rgraphviz to produce the tree, but I'm not sure how useful that is.

Interpretation: You can read the tree just like any other decision trees. However, remember that the splits are chosen with some randomness, so I'm not sure how much trust I would place on any particular tree. Breiman did not design random forests so that the trees can be interpreted the usual way.

Andy

From: helen.mills_at_yale.edu  

> All,
> What purpose does the getTree function have in Random Forest?
> Can you graph it
> as you can in rpart and can it be interpreted in the same way?
>
> Helen Mills Poulos
> Yale School of Forestry
>
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