How to make a circular graph (node connections)?

Question

Akshar Agarwal 2020-7-7

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https://ww2.mathworks.cn/matlabcentral/answers/560693-how-to-make-a-circular-graph-node-connections

回答： Kelly Kearney 2020-7-9

I've got my data formatted for use with the digraph plots, but I'd like it to look more like this: https://i.pinimg.com/originals/c6/1c/a2/c61ca29de6c768fe048eca1fe3b48afc.png

Any ideas?

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Answer 1

Steven Lord 2020-7-7

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https://ww2.mathworks.cn/matlabcentral/answers/560693-how-to-make-a-circular-graph-node-connections#answer_462011

Use the layout function to layout your digraph using the 'circle' layout.

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Akshar Agarwal 2020-7-9

That's not really what I meant. Is there a way to make the chord diagram "prettier", like the example provided? I currently have to do this in R but it'd be nice to have it all in Matlab.

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Answer 2

Kelly Kearney 2020-7-9

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The short answer is that you can indeed make these in Matlab, but it's not simple.

You basically need to recreate the calculations for edge paths from d3's chord diagram layout code (R's chorddiag is a wrapper around that library), then plot said paths as either line or patch objects (I prefer patches because they make it easier to customize the edge width and color and add transparency).

Alternatively, you can code it in javascript and render it in an html window via Matlab's web command. Definitely not for the faint of heart... :-)

I could probably demonstrate (the all-Matlab version) if you have a simple example dataset.