Heatmap doesn't show the values

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Jake
Jake on 12 Sep 2024
Commented: zzm oliver on 18 Sep 2024
The heatmap figures I used to plot on Matlab had the values labeled in each cell (just like the documenation says), but now the figure doesn't include the text. I'm not sure if I made changes to some settings. Does anyone know what the issue is?
For instance, I get the correct output here, when I run the following on web.
figure
heatmap(magic(5)); colormap(sky)
But this is what I get when I run this locally on my computer.
** EDIT: I run 2024a

Accepted Answer

Steven Lord
Steven Lord on 12 Sep 2024
Moved: Steven Lord on 12 Sep 2024
Let's check that you're using the heatmap function included in MATLAB and not a different heatmap.m that you've written yourself or downloaded from somewhere else. What does this command show?
which -all heatmap
/MATLAB/toolbox/matlab/specgraph/heatmap.m /MATLAB/toolbox/matlab/bigdata/@tall/heatmap.m % tall method
  2 Comments
Jake
Jake on 12 Sep 2024
Moved: Steven Lord on 12 Sep 2024
Yup! You were right, I had a custom heatmap function stored in my main simulation folder. Thank you.
I can accept this if it's posted as an answer :)
zzm oliver
zzm oliver on 18 Sep 2024
I met the same problem. However, which -all heatmap showed that I have not other custom heatmap function in my path.What is weird on my computer is that when I zoom in, I can see the values in the cell. However, I cannot see them when clicking the "house" icon on the top-right to restore to default view. I am using R2024b.

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More Answers (1)

Taylor
Taylor on 12 Sep 2024
I'm not able to reproduce this in R2024a myself either. You can assign the output of heatmap to a variable to access the heatmap properties though. CellLabelColor and ColorbarVisible are some properties to start with.
  1 Comment
Jake
Jake on 12 Sep 2024
Hi @Taylor! The comment from @Steven Lord seemed to nudge me in the correct direction, and I think having a custom function changed the behaviour.

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