Similar to a funnel but with equal-width layers stacked from bottom, representing hierarchical structure. Each layer grows or shrinks to show the relative size of each level in the hierarchy.
The Drake Equation — How Many Alien Civilizations Are Out There?
Best for
- Hierarchical structures with distinct levels
- Showing proportional relationships between tiers
- Visualizing population or resource distribution by level
Avoid when
- Data has no inherent hierarchy
- Too many levels make the pyramid hard to read
- Precise comparison between layers is needed
Alternatives: Funnel Chart