[R] palettes for the color-blind

Max Kuhn mxkuhn at gmail.com
Thu Nov 3 03:08:03 CET 2011

Yes, I was aware of the different type and their respective prevalences.

The dichromat package helped me find what I needed.



On Wed, Nov 2, 2011 at 6:38 PM, Thomas Lumley <tlumley at uw.edu> wrote:
> On Thu, Nov 3, 2011 at 11:04 AM, Carl Witthoft <carl at witthoft.com> wrote:
>> Before you pick out a palette:  you are aware that their are several
>> different types of color-blindness, aren't you?
> Yes, but to first approximation there are only two, and they have
> broadly similar, though not identical impact on choice of color
> palettes.  The dichromat package knows about them, and so does
> Professor Brewer.
> More people will be unable to read your graphs due to some kind of
> gross visual impairment (cataracts, uncorrected focusing problems,
> macular degeneration, etc) than will have tritanopia or monochromacy.
>   -thomas
> --
> Thomas Lumley
> Professor of Biostatistics
> University of Auckland
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