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composition family
marimekko
Grid where both row and column dimensions are proportional to a quantity.
Combines stacked bars with variable column widths so cell area encodes both dimensions of a 2D distribution (e.g., market segment × geography, with cell area = revenue). Cells often labelled with category names or numbers.
When to use
Two-dimensional composition where both totals (column widths) and shares within (row heights) matter.
When NOT to use
Either dimension is just categorical without a quantity (use heatmap).
Rhetorical roles
- decompose
- distribute
Variants & related
Required primitives
- has_legend
- has_axis_titles
Optional primitives
- has_data_labels
- has_source_note
Common anti-patterns
- rainbow-palette
- unreadable-small-cells
Disambiguation rules
- Variable COLUMN WIDTHS proportional to a quantity (population, revenue) — this is the marimekko signature.
- Equal-width grid + colour for value = heatmap.
- Equal-width grid + categorical text in cells = matrix-categorical-coded.