how change the colors with heatmap ?

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huda nawaf 2013-7-2

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hi,

I used heatmap to show the clusters, but the colors is black and red.

how change these colors?

thanks

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Image Analyst 2013-7-2

编辑：Image Analyst 2013-7-2

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

huda nawaf 2013-7-4

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hi,

*Thanks , I resolved the problem of heatmap with not default colors, but happen another problem.

My matrix data (17770*17770) with size 2 GB. what I want is show these data using heatmap This is my code:

        map=[0 0.5 0.5;0.5 1 1];
         h=colormap(map);
        f=heatmap(data,'colormap',h);

it takes more than two hours , then get help out of memory.

Are there a way to avoid this problem?

Thanks in advance*

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回答（1 个）

per isakson 2013-7-2

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在 MATLAB Online 中打开

Doc on bioinformation tb says:

HeatMap(Data, ...'Colormap', ColormapValue, ...)

and see

colormap, Set and get current colormap

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MATLAB Graphics Formatting and Annotation Colormaps

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