Phil Spector wrote:
Jahan - Try dat$target = toupper(dat$target)
Note that in this case, the above *will* coerce dat$target to a character vector, which may or may not be what is intended. ______________________________________________ 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.