Exploring Networks with Sankey

July 16, 2013

(This article was first published on Timely Portfolio, and kindly contributed to R-bloggers)

Motivated by a tweet from Tony Hirst (http://blog.ouseful.info/), I started experimenting with an rCharts implementation of the d3 sankey plugin.  While I was putting together examples, I found lots of gaps in my knowledge of sankeys and network analysis.  I did not want to let good learning go to waste, so I put together this quick tutorial documenting what I learned.  Click here or on the screenshot below to see it.

For those wondering how this might be useful in finance, sankeys could be employed well in Portfolio Appraisal/Holdings type reports where nodes represent household, client accounts, asset classes, and security types.  Edge weight would be $ or % in each.


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