Hi Steve,I had the same problem when writing the hierobarp function in plotrix. Have a look at the source code (v2.6-4 in my copy lines 128-133) as the solution seems to work well.
Jim ______________________________________________ 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.
