OK, now it works... just using [ and ] or [[ and ]] works. I thought have tried it before... why does it workj now and not before?
hmhh sorry for the traffic ______________________________________________ [email protected] 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.

