[R] randomForest get tree
Liaw, Andy
andy_liaw at merck.com
Tue Mar 11 19:38:10 CET 2008
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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