to remove an individual column: classResults$subjEnglish <- NULL
to remove object: rm(classResults) to access student names: row.names(classResults) Sent from my iPad On Mar 18, 2012, at 5:31, Ajay Askoolum <aa2e...@yahoo.co.uk> wrote: > If I create a data.frame using session variables as follows: > > classResults<-data.frame(subjEnglish,gradeEnglish,subjFrench,gradeFrench,row.names=studentName) > > > How can I remove the variables? I tried > >> rm(names(classResults)) > Error in rm(names(classResults)) : > ... must contain names or character strings > > > Also, how can I include the row.names variable. I tried > >> names(classResults) > [1] "subjEnglish" "gradeEnglish" "subjFrench" "gradeFrench" > > > but this does not include that name. > > Thanks. > [[alternative HTML version deleted]] > > ______________________________________________ > 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. ______________________________________________ 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.
