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How to hide the value in heatmap?

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I need to hide the value in the heatmap if it is zero.
Any suggestion?

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Accepted Answer

Ameer Hamza
Ameer Hamza on 7 Apr 2020
You can ignore those values in heatmap by setting them to nan. For example,
M(M==0) = nan; % M is the name of your variable.
heatmap(M);

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Zeynab Mousavikhamene
Zeynab Mousavikhamene on 7 Apr 2020
Yes. I want zeros to be hidden.
Ameer Hamza
Ameer Hamza on 7 Apr 2020
MATLAB does not support making individual labels invisible, but here is a workaround. You can set the text color to the same as the background color for boxes with 0 value. It that way, they will appear invisible.
M = rand(5);
M(M<0.5) = 0;
h = heatmap(M);
h.CellLabelColor = h.Colormap(1,:);
Zeynab Mousavikhamene
Zeynab Mousavikhamene on 7 Apr 2020
Thank you for your suggestion. I found a better way:
'MissingDataColor','1.00,1.00,1.00
Adding above code makes thos black circles white with no dat shown for NANs.

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