have you done: library(nlme)
in your script? On Dec 27, 2007 5:42 PM, andrea previtali <[EMAIL PROTECTED]> wrote: > > Hello, > I'm trying to use the groupedData function and R is giving me the message: > Error: can not find function "groupedData" > The code is coming from a textbook so I think it should be correct: > > pigs<-data.frame(cbind(pig.time,pig.id,pig.wt)) > pig.growth<-groupedData(pig.wt~pig.time|pig.id,data=pigs) > > I have added the package "nlme" and to confirm that it was installed > correctly I requested the list of functions included in the package > (library(help=nlme)) and I do see groupData in the list. > I am using R 2.6.1 in Windows XP. > > I'll appreciate your help. > Thanks, > Andrea Previtali > Post-doc fellow > Dept. of Biology, > Univ. of Utah, SLC, UT. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.