R, D3.js and SNA Course

I took the SNA course by Lada Adamic in coursera. It's a super interesting course. In fact, I was using the networks only how a visualization tool, and that is what it make me little bit embarrassing because there are more, a lot of more. You can detect communities, know the more centric nodes and a lot of other information. So, there are a lot of reasons to look the course.

By other hand I like the d3 javascript library. Recently I was learning javascript, so I decided make a very little app to keep learning this library and show differents measures of centrality for each node in a set of 4 toy networks and see these measures by size, color or a label. 

In this respositoy you can find the R code which create the networks, and export the data in json format.