[R] color palette from red to blue passing white

[Thomas Lumley]

On Tue, 4 Dec 2007, Martin Maechler wrote:
> Package 'vcd' (and others) use package 'colorspace',
> and I have wondered in the past if these color space computations
> should not be merged into to standard R (package 'grDevices').
> But that's really a topic for another thread, on R-devel, not R-help..

At one time, the fact that colorspace used S4 classes was a problem for 
including it in base R.

 	-thomas

Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle