If it would help get any assistance with my issue, here's another method I'm trying (using R sample data):
ggplot(mtcars, aes(disp)) + geom_point(aes(y = mpg, colour = qsec))+ scale_colour_gradient(low="yellow", high="green")+ geom_point(aes(y = cyl, colour = qsec))+ scale_colour_gradient(low="red", high="blue") What I want is the var "mpg" to be colored by the var "qsec" from yellow to green and then the var "cyl" to be colored by the var "qsec" from red to blue. Instead, both colors end up being from red to blue. Thanks again, kb ______________________________________________ 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.