[R] Dump decision trees of randomForest object

Liaw, Andy andy_liaw at merck.com
Thu Oct 9 20:38:44 CEST 2008

See the getTree() function in the package.  Also, the source package
contains C code that does the prediction that you may be able to work


From: Christian Sturz
> Hi,
> I'm using the package randomForest to generate a classifier 
> for the exemplary
> iris data set:
> data(iris)
> iris.rf<-randomForest(Species~.,iris)
> Is it possible to print all decision trees in the generated forest?
> If so, can the trees be also written to disk?
> What I actually need is to translate the decision trees in a 
> random forest
> into equivalent C++ if-then-else constructs to integrate them in a C++
> project. Have this been done in the past and are there already any
> implemented approaches/parser for that?
> Cheers,
> Chris
> --
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