-->

Tuesday, February 13, 2018

Nina Riddell: Chord diagrams: when there's too many categories to ...
src: 3.bp.blogspot.com

A chord diagram is a graphical method of displaying the inter-relationships between data in a matrix. The data are arranged radially around a circle with the relationships between the data points typically drawn as arcs connecting the data.

The format can be aesthetically pleasing, making it a popular choice in the world of data visualization.


Video Chord diagram



Name

Chord diagrams get their name from terminology used in geometry. A chord of a circle is a geometric line segment whose endpoints both lie on the circle. Chord diagrams are also known as radial network diagrams and may sometimes be referred to as a type of circular layout.

Maps Chord diagram



Hierarchical Edge Bundling

While a small amount of data could be represented in a circular diagram using straight lines to show the interconnections, a diagram featuring numerous lines would quickly become illegible. To reduce the visual complexity, chord diagrams employ a technique called hierarchical edge bundling.


Jazz Guitar Chord Chart - SongMaven
src: songmaven.com


History

This type of diagram was used in 2007 by the New York Times infographic Close-Ups of the Genome


chord plot | Longhow Lam's Blog
src: longhowlam.files.wordpress.com


References


Jazz Guitar Chord Chart - SongMaven
src: songmaven.com


External links

  • Hierarchical Edge Bundling is the technique by which the lines connect nodes together are grouped to reduce visual clutter.

Source of article : Wikipedia