Andrew Yee <andrewjyee <at> gmail.com> writes: > > I've found RColorBrewer useful for its qualitative palettes, but wished that > it could generate more than 12 qualitative palettes (e.g. with Set3). Any > suggestions for alternative color palette generators that can handle e.g. 18 > distinctive colors? (I'm aware of using rainbow(), but this doesn't > generate enough distinct colors when the number of palettes is large).
Assume you want 40 colors, get a basic color palette from RcolorBrewer, and use colorRampPalette to interpolate # Brewer palette Paired 12 pal12 = c("#A6CEE3", "#1F78B4", "#B2DF8A", "#33A02C", "#FB9A99", "#E31A1C", "#FDBF6F", "#FF7F00", "#CAB2D6", "#6A3D9A", "#FFFF99", "#B15928") colorRampPalette(pal12)(40) Dieter ______________________________________________ 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.