David and Jim, thanks for your help. Your advice was exactly what I needed.
I tinkled with the "col" argument before but I was trying to assign colors to numbers with a command like: col(1<-"green",2<-"blue") Usually I need to see an example before I can implement something correctly. Thanks again. -- View this message in context: http://n4.nabble.com/specifying-colors-in-a-heatmap-image-like-plot-tp1472388p1473485.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.