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Heatmaps render data as a grid where each cell’s color encodes a measure value at the intersection of two dimensions. Use them to spot patterns, dense clusters, and outliers across two categorical axes at once.

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Variant

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Color-scaled grid

One dimension on the X axis, one on the Y axis, and one measure mapped to the Color channel. Each cell’s color encodes that measure’s value for its row/column pair.

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Color palette

A continuous gradient palette is applied by default — low values map to the lighter end, high values to the darker end. Change or reverse the palette in the Color section of the Style tab. For custom palettes, see Color & stacking.

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Data structure

A heatmap requires exactly:
  • One dimension on the X axis
  • One dimension on the Y axis
  • One measure on the Color channel
Cells with no data in the result set are left blank.