For blog #3, I wanted to talk about an graph or visualisation I’ve been working on, to help CDP display their data in a new way. It’s called a chord diagram, looks a bit like a spider’s web and is used to show the strength and range of interconnections in whatever system you are looking at, for example the total imports and exports between different countries (PLEASE click for interactive version-much more fun!). Source: http://www.delimited.io/2014/11/18/interactive-chord-diagrams-in-d3.
In short, segments around the edge of the circle represent components of the system you are looking at, in this case countries, lines that link two segments indicate a relationship between the segments, in this case a trade relationship, and the width of the lines shows the strength of the relationship, in this example the total imports and exports between countries.