[Rd] plot.lm: "Cook's distance" label can overplot point labels
tlumley at u.washington.edu
Fri Feb 20 10:32:15 CET 2009
On Thu, 19 Feb 2009, John Fox wrote:
> Dear John and Brian,
> My point about colour-blindness was partly tongue-in-cheek, but I think that
> it's a bad choice to have the second and third colours in the default
> palette as red and green.
Looking at the standard palette with dichromat::dichromat() it seems that it depends on which flavour of red-green anomaly you have. For deuteranopia the red and green are quite close. For protanopia they are pretty distinct and the confusion is between colours 3 and 7 (yellow vs green) and between 4 and 6 (blue and magenta).
I agree that the standard palette isn't ideal, though.
Thomas Lumley Assoc. Professor, Biostatistics
tlumley at u.washington.edu University of Washington, Seattle
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