On Oct 4, 2015, at 7:39 PM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote:
> You'll get what you want if you use as.matrix(datentabelle)[,1] > instead of datentabelle[,1]. This happens to work in this particular case, but fails if the data frame contains text columns. Example: datentabelle <- cbind(datentabelle, text = sample(letters, nrow(datentabelle))) barplot(as.matrix(datentabelle)[,1]) R> Error in -0.01 * height : non-numeric argument to binary operator Therefore I would get the row names from your data frame with rownames(datentabelle), and use them as the names.arg argument of barplot(): barplot(datentabelle[,1], names.arg=rownames(datentabelle)) Cheers, Boris ______________________________________________ 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.
