Overview
Chord diagrams arrange data points in a circle, with arcs connecting them to show relationships or flows between them. The thickness of the arc represents the strength or volume of the relationship. They are particularly useful for showing complex migrations or transitions between categories.
Benefits
- Beautiful and engaging visualization.
- Good for showing reciprocal relationships.
Challenges
- Can become very cluttered ('hairball') with too many connections.
- Hard to read specific values accurately.
Use Cases
- Visualizing migration patterns between countries.
- Showing brand switching in a market.