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MathGroup Archive 2005

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Re: ArrayPlot: ColorRules v. ColorFunction

  • To: mathgroup at smc.vnet.net
  • Subject: [mg57951] Re: ArrayPlot: ColorRules v. ColorFunction
  • From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 14 Jun 2005 05:10:16 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <d8jli2$stv$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

mat = Table[Random[], {5}, {5}];

ArrayPlot[mat, ColorFunctionScaling -> False,
  ColorFunction -> (Which[# < 0.5, RGBColor[1, 0, 
0], # < 0.5,
  RGBColor[1, 1, 1], # < 1, RGBColor[0, 0, 1], 
True,
  RGBColor[0, 1, 0]] &)]

Regards
  Jens

"Bruce Colletti" <vze269bv at verizon.net> schrieb im 
Newsbeitrag news:d8jli2$stv$1 at smc.vnet.net...
> Re Mathematica 5.1 under WinXP.
>
> T is a 5x5 matrix of numbers.
>
> Using ArrayPlot, how would I display the colored 
> array, where entries in [0, 0.3], (0.3,0.5] and 
> (0.5,1] are Red, White and Blue respectively 
> (default color is green for values outside 
> [0,1])?
>
> Thanks.
>
> Bruce
> 



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