Rank: 4669 based on 18 downloads (last 30 days) and 1 file submitted
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tryhard

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26 Aug 2013 spyc: a color-coded version of sparse matrix viewer spy View sparse matrices with matrix entries colored according to relative value and a colormap. Author: tryhard spy, sparse, color, plot, scatter 18 1
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14 May 2014 spyc: a color-coded version of sparse matrix viewer spy View sparse matrices with matrix entries colored according to relative value and a colormap. Author: tryhard Hugo Gualdron

http://www.mathworks.com/matlabcentral/fileexchange/46551-cspy-m is other option for this function. In this version is possible plotting more quickly.
Ex:
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spyc(rgb2gray(imread('ngc6543a.jpg')));
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cspy(rgb2gray(imread('ngc6543a.jpg')), 'ColorMap', 'hot')

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