Those numbers that you pass to col = ... correspond to the current sessions palette, not to the names of colors() that R knows about. You can either set up your own palette:
## see current palette palette() [1] "black" "red" "green3" "blue" "cyan" "magenta" "yellow" [8] "gray" ## set up new palette palette(grey(seq(0, 0.9, length = 25))) plot(1:25, col = 1:25, pch = 16) or give a direct set of colours to col = as either character names or hex values. See "Color Specification" under ?par and ?palette for an overview and pointers to other functions. Cheers, MIke. On Tue, Dec 10, 2013 at 9:08 AM, Katharine Miller - NOAA Federal <katharine.mil...@noaa.gov> wrote: > Hello, > > I am having difficulty obtaining the correct colors in my R charts. > >> colors()[c(552, 254, 26)] > [1] "red" "green" "blue" > > But, if I specify col=552 in my barplot, I get gray bars. Likewise, > col=254 gives bright pink, and col=26 is a red-orange. I get accurate > results when I spell out the names, but I am making a pallet with 20- 30 > colors and it is a real pain to have to do that. Can anyone help me figure > out what I am doing wrong? > > Thanks > > [[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. -- Michael Sumner Hobart, Australia e-mail: mdsum...@gmail.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.
