Dear All, Thank you to all of you for your fast reply. I will run the test and subscribe to the R-sig-db list.
Cheers, Henri ______________________________________________ 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.