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composition family

mosaic

Marimekko with normalised rows and columns to show conditional probabilities.

Statistical cousin of marimekko. Used in cross-tabs and contingency analysis where the relative proportion within each group is the point.

When to use

Cross-tabulation where the chart purpose is showing dependence between two categorical variables.

When NOT to use

You just want composition (use marimekko or stacked bars).

Rhetorical roles

  • decompose
  • correlate

Variants & related

Required primitives

  • has_legend
  • has_axis_titles

Optional primitives

  • has_data_labels

Common anti-patterns

  • unreadable-small-cells

Disambiguation rules

  • Both row heights and column widths scale with quantities, like marimekko, but normalised within groups.
  • Almost identical to marimekko visually — distinguish by intent / source domain.