A radar or spider or web chart is a two-dimensional chart type designed to plot one or more series of values over multiple quantitative variables. It has several downsides and should be used with care. In R, the
fmsb library is the best tool to build it.
fmsb package allows to build radar chart in R. Next examples explain how to format your data to build a basic version, and what are the available option to customize the chart appearance.
It is totally doable to show several groups on the same spider chart, still
fmsb package. The examples below will guide you through
this process. But keep in mind that displaying more than 2 or 3 groups will result
in a cluttered and unreadable figure. ( read more )
There is a lot of criticism going around spider chart. Before using it in a project, you probably want to learn more about it.Why it's dangerous
The web is full of astonishing R charts made by awesome bloggers. The R graph gallery tries to display some of the best creations and explain how their source code works. If you want to display your work here, please drop me a word or even better, submit a Pull Request!
Note: the radar chart examples below are built with
ggplot2, which is a nice addition to the
fmsb examples above.