[Rd] rpart package, text function, and round of class counts

From: yindalon <yinnerspace_at_gmail.com>
Date: Sun, 04 Mar 2012 15:04:08 -0800 (PST)


I run the following code:

library(rpart)
data(kyphosis)
fit <- rpart(Kyphosis ~ ., data=kyphosis) plot(fit)
text(fit, use.n=TRUE)

The text labels represent the count of each class at the leaf node. Unfortunately, the numbers are rounded and in scientific notation rather than the exact number of examples sorted by that node in each class.

The plot is supposed to look like
http://www.statmethods.net/advstats/images/ctree.png as per http://www.statmethods.net/advstats/cart.html.

I'm running 2.14.1 on a mac.

Can anyone verify or point out if I am doing something obviously wrong for displaying the counts rounded and in scientific notation rather than the true counts in each class at each node?
Thanks.

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