The gray (level) function returns different shades of gray, where level is a vector of numbers ranging from 0 to 1. 0 is white and 1 is black and everything in between is a shade of gray.
Is there a function that will let me choose two different colors? For example, a 0 might be blue and 1 might be red and in between might be a mix. Jeffrey ______________________________________________ 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.