If you can wait a day or two, the next version (1.18) of the 'tis' package that I will put on CRAN very soon has a function called "tierChart" that does what you want with a 'tis' series.
-- Jeff ______________________________________________ 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.
