R color palettes for many data classes

Question

Are there any good packages for colour palettes in R that can handle many data classes? I have 16 sequential data classes. I tried RColorBrewer but it has a max of 9 data cl

Answer 1

There is now the colorspace package http://colorspace.r-forge.r-project.org/reference/hcl_palettes.html.

E.g., to create a palette with 20 different colors:

library(colorspace)
q20 <- qualitative_hcl(20, "Dark2")
demoplot(q20, "bar")