I'm not sure if this exactly what you need but it is a good introduction. and a great website to boot.
http://flowingdata.com/2010/11/23/how-to-make-bubble-charts/ John [[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.
