[R] Colormap that look good in gray scale
Achim.Zeileis at wu-wien.ac.at
Wed Mar 4 19:43:36 CET 2009
On Wed, 4 Mar 2009, thibert wrote:
> I am looking for a colormap (in color) that look like a gradient in gray
> scale. It is to allow people without color printer to print the color graph
> and have something meaningful in gray scale.
> It can be something like this
> but with an arbitrary number of different colors, not just six.
There is some discussion of this in our manuscript
Achim Zeileis, Kurt Hornik, and Paul Murrell
Escaping RGBland: Selecting colors for statistical graphics
which is forthcoming in CSDA (Computational Statistics & Data Analysis),
for a preprint see
This discusses choice of the color, especially for shading areas. If you
want to use this for shading points or lines, I would recommend to use
relatively dark and colorful colors and different plotting characters.
R packages that provide useful tools for coloring graphics include
colorspace, RColorBrewer, ggplot2, and plotrix.
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