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specialized family
venn
Overlapping circles showing set intersections.
Two or three overlapping circles show shared and unique elements. Common in marketing positioning ("we sit at the intersection of X and Y") and audience analyses.
When to use
Showing set membership and overlaps between 2–3 groups.
When NOT to use
4+ sets (becomes unreadable). Or precise counts matter (use UpSet plot).
Rhetorical roles
- decompose
- position
Variants & related
Required primitives
- has_legend OR has_data_labels
Optional primitives
- has_title
Common anti-patterns
- decoration-only
Disambiguation rules
- 2–3 overlapping circles.
- If labels just sit in named areas without circles, it might be a framework, not a venn.