Definition

wikipedia states:

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

Videos

No Tableau examples found at time of writing (August 2016).

Blog posts

A comprehensive post by Noah Salvaterra was hosted on datablick.com, and appears to be the guide to this chart type:

http://datablick.com/2015/08/27/diy-chord-diagrams-in-tableau-by-noah-salvaterra/

Example workbooks

Noah’s work is mind-bogglingly remarkable. There are plenty of examples of wonderfully creative viz’s on his Tableau Public profile, including a couple of chord diagrams:

http://public.tableau.com/profile/nsalvate#!/vizhome/PhoneChord/ChordDiagramBarChart

http://public.tableau.com/profile/nsalvate#!/vizhome/UberChord/ChordDiagramBarChart

In August 2016, Chris Love shared this:

https://public.tableau.com/profile/chrisluv#!/vizhome/TrainChord/ChordDiagramBarChart

Screen Shot 2016-08-04 at 19.24.58

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