table(x2)[as.character(x[,1][x[,1] > 0])]
Why do I need as.character() here? I checked it does not work without, but I don't see why. The help says "as.character attempts to coerce its argument to character type".
Thanks very much! Guillaume ______________________________________________ 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.
