Hi all, I know it seems simple but I am trying to copy a code and I don't know what is the problem with this command!
msubsub=msub[,cn] the error I get is : error in '[.data.frame '(msub, ,cn) : undefined columns selected Thanks for any help, Elahe ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.