Dennis -- it does! However, how can a more generic situation be handled where South,North,East,West are replaced by x2,d6,qqw,mQ respectively? Thanks.
On Wed, Apr 14, 2010 at 11:41 PM, Dennis Murphy <djmu...@gmail.com> wrote: > Hi: > > Does this work for you? > [[alternative HTML version deleted]] ______________________________________________ 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.