How can I specify different colors for different groups of data in correlation heatmap?
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Hello,
I have a correlation heatmap and I would like all the "boxes" with -0.7<R<0.7 to be the same color (e.g. gray), so to be able to more easily visualize the others.
To do this for only one range (e.g. R<0.7), I used caxis, but it does not allow to specify multiple ranges.
This looks like it would be an easy fix, but I am pretty new to Matlab and I don't seem to be able to figure out anything.
Thanks for your input!
Rosalba
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Devineni Aslesha
2020-5-18
Hi Rosalba,
Here is the way to map the boxes with range -0.7<R<0.7 to the same colour.
load patients
tbl = table(LastName,Age,Gender,SelfAssessedHealthStatus,...
Smoker,Weight,Location);
h = heatmap(tbl,'Smoker','SelfAssessedHealthStatus','ColorVariable','Age','ColorMethod','median');
xh = h.Colormap > -0.7 & h.Colormap < 0.7;
[rowIdx, colIdx] = find(xh == 1);
h.Colormap(rowIdx, colIdx) = 0.5;
For more information, refer the following links.
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