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Treemap

Composition · Hierarchical part-to-whole

Added from Insert on the editor’s rail; configure it in Card settings, in its Data and Format tabs.

Nested rectangles sized by value — handles far more categories than a pie and shows hierarchy (category → subcategory) via nesting. Great for “where does the total live?” questions.

Well Accepts Notes
Category dimension
Value measure
Color dimension

Click a field in the Fields list, or drop it on the chart, and it goes to the well that fits it — see where a field goes. To choose the well yourself, drop the field on it or use its + Add field.

Measure wells carry a quick-calc dropdown (running total, YoY %, % of total, …); SquareX measures are listed with the fields, under Measures.