bug in function rpart (PR#9245)
You have not given a reproducible example, and you are specifically asked not to use R-bugs for contributed packages. Unless you are able to produce a reproducible example and send it to me as maintainer, there is nothing I can do, not even to know if you are using rpart correctly. Please do study the FAQ and posting guide.
On Fri, 22 Sep 2006, yma at biostat.bsc.gwu.edu wrote:
Full_Name: Yong Ma Version: R 2.3.1 OS: Windows 2000 Submission from: (NULL) (128.164.162.1) I have a data set containing 3000 observations. while I was trying to build a survival tree using the function rpart, I kept getting the following error message.
tree<-rpart(coxph(Surv(diabv, diabf) ~ weight, data = sgotdat))
Error in "$<-.data.frame"(`*tmp*`, "yval2", value = c(1, 638)) :
replacement has 2 rows, data has 1
It was confusing to me because I was able to use the coxph function on the same
data set with no problem at all. So I googled the internet and found some help
from the following link.
http://tolstoy.newcastle.edu.au/R/devel/05/04/0598.html
It suggested that the problem has to do with the length of the data. So I tried
a subset of my original data containing 2500 observations and BINGO it worked!
However, I need to run the analysis on the complete data set and the patch
proposed by Andy is not clear to me how to implement. Please fix the bug
systematically.
______________________________________________ R-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595