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MathGroup Archive 2011

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MatrixPlot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg115996] MatrixPlot
  • From: Sofia Figueiredo <sofiafig at gmail.com>
  • Date: Fri, 28 Jan 2011 06:16:40 -0500 (EST)

Dear Math group,
I have a 14x8 matrix "A" and I want to present it as a color map. I am
trying to use the command MatrixPlot, but I do not manage to set the
upper and lower limit. I tried to define the
PlotRange->{Min[A],Max[A]}, but it did not work.
How can I set the upper limite of the color range to the maximal value
of my matrix and the lower limite of the color range to the minimal
value of my matrix?
I also find strange that, in the MatrixPlot I get, the system can
diferentiate between the values 0.7 and 0.2, but then attributes the
same color to values as disparate as 1 and 145. How can I avoid this?

Thanks in advance.
Sofia


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