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2011 May 19
1
Specifying Splits WhenUusing rpart
I am using the package rpart to explore various classification structures.
The call looks like:
seekhi1<-rpart(pvol~spec+a1+psize+eppres+numpt+icds+bivalcrt+stents+ppshare+
nhosp+nyrs,data=dat,method="class",
control=rpart.control(minsplit=30,xval=10))
The output is
1) root 198 87 1 (0.5606061 0.4393939)
2) psize=1,2 122 43 1 (0.6475410 0.3524590)
4) a1=3 23 5 1 (0.7826087 0.2173913) *...