> This only helps to some extent. > > If you set I=N and J=N then with N somewhere between 113000 and 114000 > ioffset will turn negative.
Thanks to all for suggestions. N=113000 is by far out of range since (as far as I can tell) the distance structure would be longer than R can presently handle, but please correct me if I'm wrong. Peter ______________________________________________ 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.