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