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I want to visualize some data matrix I have by coloring each cell of the matrix in a different gradient based on the cell values. Someone already asked on SO how to do exactly this using Matlab.

I don't have access to Matlab. Is there some free tool that would allow me to do this? Or some easy way to create such an image programmatically (from python maybe or with gnuplot)?

Here is an exemple of what I would like to achieve :

enter image description here

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Mathieu Pagé
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1 Answers1

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I f you already know matlab, the easier is to use octave. it's free an the syntax is exactly same.

Oli
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  • I don't know Matlab, but I can learn. Thanks for your answer. – Mathieu Pagé Dec 02 '11 at 12:46
  • You can just use the same code than the link you provided: http://stackoverflow.com/questions/3942892/how-do-i-visualize-a-matrix-with-colors-and-values-displayed – Oli Dec 02 '11 at 13:55