[R] Strategy for creating a palette...?

[Kjetil Kjernsmo]

Dear all,

I'm generally not a big fan of GUIs, but I have just discovered one thing
where a GUI would be a nice thing: creating color palettes.

I'm creating an "image", for transparencies for a lecture I'm giving, so
this is going to look great... :-) What I'm out for, is to make green
tones and red tones, and a relatively sharp break between them. This break
will signify a rejection region for a test.

I've spent all evening, er, night trying to tune this, but it's still
ugly. My best shot so far is this:
greenred <- palette(rgb(exp(-(0:255)/80), exp(-(0:255)/80), 0))
greenred2 <- greenred[c(1:160, 220:256)]
and use greenred2.

Any ideas...? Anybody got a pretty palette for this purpose? Also, I'd
like to tune the palette so that the break between green and red happens
at a value of e.g. 0.05. How would I do that?

Best,

Kjetil
-- 
Kjetil Kjernsmo
Graduate astronomy-student                    Problems worthy of attack
University of Oslo, Norway            Prove their worth by hitting back
E-mail: kjetikj at astro.uio.no                                - Piet Hein
Homepage <URL:http://folk.uio.no/kjetikj/>
Webmaster at skepsis.no                            OpenPGP KeyID: 6A6A0BBC

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