Dear R-users
I am using RPART package to get regression trees. However having trouble
getting the text function to put the full splitting rule number on the plot,
instead to puts it in scientific notation. When a covariate has 1e4 or greater
number of digits then the splitting rule number displayed on the plot is in
scientific notation. But print.rpart displays the splitting rules in full. I
have tried using digits option in text function but this only alters digits of
the mean displayed at terminal nodes. How do I get the full splitting rule
number displayed on the tree plot?
Below is an example.
library(rpart)
temp <- as.data.frame(cbind(kyphosis, Start2=kyphosis$Start))
temp$Start2 <- temp$Start2+10000
fit1 <- rpart(Age~ Kyphosis +Number + Start2, data=temp)
plot(fit1)
text(fit1, use.n=TRUE, digits=5)
Thanks
Dr Rebecca O'Leary, PhD
Biostatistician
Senior Research Officer
UWA Centre for Child Health Research
Telethon Institute for Child Health Research, 100 Roberts Rd, Subiaco
Perth WA 6008 Australia
Email: role...@ichr.uwa.edu.au
Tel: +61-8-9489 7745
Fax: +61-8-9489 7700
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