Heat Maps with Text

Heat maps with numeric values overlayed

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Editor's Note: This was a File Exchange Pick of the Week

A number of people have asked me whether MATLAB can add text to heatmaps to show the exact values. This is very easy to do, however, making a the text robust to resizing, zooming and other operations is a little trickier.
This example shows how to add text to the heatmap and also includes an M-file that shows how to handle zooming and resizing.

Cite As

Robert Henson (2026). Heat Maps with Text (https://au.mathworks.com/matlabcentral/fileexchange/15877-heat-maps-with-text), MATLAB Central File Exchange. Retrieved .

Acknowledgements

Inspired: scattertext

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.1.0.1

Updated license

1.1.0.0

Added BSD license

1.0.0.0