This post was inspired by this competition, hosted by JumpingRivers. The competition asks you to extract data from their GitHub account containing the details of R groups and R ladies groups around the world. With this data it asks you to create a visualisation, of any kind. I’ve been working on my visualisation skills in R so I thought I would have a go at entering.
After learning to plot graphs in R using ggplot2, the next visualisation technique in R I wanted to learn was how to plot geographical data on maps. There is a package called ggmap that works with ggplot2 to allow you to plot maps. You download a map of your chosen location from google maps and use it as a layer in the ggplot2 plotting system.