[R] How to use groupedData() within a function?
John_Zhong@hgsi.com
John_Zhong at hgsi.com
Mon Jul 24 17:21:11 CEST 2000
Dear Group:
I have been trying to write an R function within which the function
groupedData() would be used.
The following is a sample program:
#######################
sid<-rep(1:6,times=2)
time<-c(1:12)
trt<-rep(letters[1:3],times=4)
tem<-data.frame(sid,time,trt)
test1.fun<- function(dat=dat)
{
groupedData(time ~ trt|sid, data=dat)
}
test1.fun(dat=tem)
########################
However, when I ran this kind of program in R, I got the following error
message:
Error in as.character(table) : Object "dat" not found.
Could anyone please help me specify the parameters in the function
groupedData() so that it would
work within my self-created local function?
Thanks.
John
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