Assigning a different colors to NaN while plotting heatmap.

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Vikash Mittal 2020-6-22

评论： Adam Danz 2020-6-23

Hello all

I have a data, let's say 1000X1000 which consists of numerical values and NaN.

I have to generate a heatmap from it for which I am using the inbuilt command in MATLAB. At the same time, I want to assign a different color(different from my spectrum) to all NaN's. According to the documentation (https://in.mathworks.com/help/matlab/ref/matlab.graphics.chart.heatmapchart-properties.html) we can use

h = heatmap(__,'MissingDataColor',[0.8 0.8 0.8])

to achieve the goal but it is not working in my case.

Please help.

Vikash Mittal 2020-6-23

I was using 2020a and as I said before it was working but not changing the color. There was no error message.

Actually I figured out the reason. There is one package I found https://www.mathworks.com/matlabcentral/mlc-downloads/downloads/submissions/24253/versions/7/previews/html/heatmap_examples.html here which I put in my path. This was creating the problem. Although, I don't understand what is the difference between the command given in package and the conventional MATLAB command for heatmap.

Adam Danz 2020-6-23

I had a feeling you were shadowing the main function.

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