[R] Rpart decision tree
Achim.Zeileis at uibk.ac.at
Fri Apr 8 18:14:35 CEST 2011
On Fri, 8 Apr 2011, tudor wrote:
> Dear useRs:
> I try to plot an rpart object but cannot get a nice tree structure plot. I
> am using plot.rpart and text.rpart (please see below) but the branches that
> connect the nodes overlap the text in the ellipses and rectangles. Is there
> a way to get a clean nice tree plot (as in the Rpart Mayo report)? I work
> under Windows and use R2.11.1 with rpart version 3.1-46.
You could check out whether you like the plots generated in the "party"
package better. See example("ctree", package = "party").
If you like the plots but don't want to use ctree() instead of rpart():
Then you could install the "partykit" package from R-Forge and then do
plot(as.party(...)) for your "rpart" object.
> Thank you.
> plot(cart, uniform=TRUE, branch=0.25, compress=TRUE, margin=0.25)
> text(cart, use.n=TRUE, all=TRUE, fancy=TRUE, fheight=0.95)
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