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Plot colors [message #84967]

Wed, 19 June 2013 23:59

Mats Löfdahl
Messages: 263
Registered: January 2012

Senior Member

What are your favorite colors for overplotting several data sets in the
same diagram? (I'm assuming Coyote graphics here.) You'd want them to be
easy to tell apart and to have a good and similar contrast against the
(white) background.

For two colors it's easy: red and blue.

But already for three colors, if you add green you get something with
less contrasty. And for more colors, if you add the complement colors
cyan, magenta, and yellow, both yellow and cyan have the same problem.
So then I usually inspect the color names in cgcolor and pick darker
versions of the too light colors and some redder version of yellow. And
if I need more than six I don't really know what to do...

So, what is a good strategy? Do you have a good list that you always
use, and truncate it to the needed length? Or do you start the list
differently depending on how long it has to be? Has anybody written a
function for this? Something like

function plotcolors, index, Ncolors

/Mats

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[Message index]

		Plot colors By: Mats Löfdahl on Wed, 19 June 2013 23:59
		Re: Plot colors By: David Fanning on Thu, 20 June 2013 05:28
		Re: Plot colors By: Mats Löfdahl on Thu, 20 June 2013 08:44
		Re: Plot colors By: David Fanning on Thu, 20 June 2013 08:52
		Re: Plot colors By: David Fanning on Thu, 20 June 2013 09:10
		Re: Plot colors By: Mark Piper on Thu, 20 June 2013 09:54
		Re: Plot colors By: David Fanning on Thu, 20 June 2013 09:55
		Re: Plot colors By: Jim Pendleton on Thu, 20 June 2013 20:22
		Re: Plot colors By: David Fanning on Thu, 20 June 2013 20:28
		Re: Plot colors By: Michael Galloy on Thu, 20 June 2013 10:24
		Re: Plot colors By: Mats Löfdahl on Thu, 20 June 2013 11:25
		Re: Plot colors By: allisonjaynes on Tue, 09 July 2013 15:56
		Re: Plot colors By: Chip Helms on Wed, 10 July 2013 10:24
		Re: Plot colors By: David Fanning on Wed, 10 July 2013 10:29

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