Hi, On Mon, Jul 12, 2010 at 12:02 PM, Richardson, Patrick <patrick.richard...@vai.org> wrote: > I'm trying to use multiple plotting colors in my code. My first "ifelse" > statement successfully does what I want. However, now I want anything less > than -4.5 to be green and the rest black. I want another "col" argument but > can only use one. How could I go about getting separate colors for anything > above 4.5 and less than -4.5? > > plot(three, type="h", col=ifelse(three > 4.5, "red", "black"), xlim=c(0,500), > ylim=range(three), lwd=2, > xlab="Chromosome", ylab="Z-Score", font.lab=2, font=2, main="Upregulated > Genes in Patient Sample")
How about: my.colors <- ifelse(three > 4.5, "red", "black") my.colors[three < -4.5] <- 'green' plot(three, type='h', col=my.colors, ...) -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact ______________________________________________ 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.
