I have been playing with package called imager, documentation on this package was extremely helpful! I have read through “getting started” as well as few other tutorial & examples.
Treemap
I’ve always been curious to make Voronoi diagram, I just think they are beautiful! When I came across data set with train stations in Japan. I instantly thought this would be great data sets to make Voronoi diagram! I’ve gotten data sets from (Ekidata)[http://www.ekidata.jp/] site. I’m amazed how many train stations we have in Japan, as well as coverage of train systems in Japan.