Chord with Self-links Part of PowerCharts XT
Chord diagram is a visually appealing way to represent weighted relationships in a radial layout. Entities (or categories) among which the weighted relationship exist are drawn on the circumference whereas the actual weighted relationship are drawn as links in the circular space of the chord diagram. The essence of a chord diagram is in knowing the dominant relationship and one can toggle to narrow focus on most important relationships.
When representing such weighted relationships amongst different entities, there will arise few situations where the entity retains a proportion to itself. Such are represented by self-links where the entity forms a relation with itself. Self links can be usually found in scenarios such as
- exchange of customers amongst different subscriptions
- migrant flow between different continents (internal migration) etc.