Great, thanks, that was helpful.

Andrew

On Thu, Apr 24, 2008 at 2:15 PM, Achim Zeileis <Achim.Zeileis@wu-wien.ac.at>
wrote:

> On Thu, 24 Apr 2008, Andrew Yee wrote:
>
> > 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).
>
> Package "vcd" implements several palette generators in HCL space which are
> somewhat similar to the palettes in ColorBrewer but provide some more
> flexibility. The underlying ideas are explained here
>
> http://epub.wu-wien.ac.at/dyn/openURL?id=oai:epub.wu-wien.ac.at:epub-wu-01_c87
> See also help("rainbow_hcl", package = "vcd") which has a few more
> examples. However, I guess that it will be hard to select a qualitative
> palette with 18 distinct colors...I couldn't imagine a plot where it would
> be sufficiently easy for humans to decode that. But maybe you can combine
> that with some sequential or diverging palette or so?
>
> Best,
> Z
>
> > Thanks,
> > Andrew
> >
> >       [[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.
> >
> >
>
>

	[[alternative HTML version deleted]]

