Circular packing or circular treemap allows to visualize a hierarchic organization. It is an equivalent of a treemap or a dendrogram, where each node of the tree is represented as a circle and its sub-nodes are represented as circles inside of it.
packcircles
and ggplot2
If your dataset has no hierarchy (it is basically just a few entities with attributed numeric values), the packcircles
package is the best way to build a circular packing chart in R. The packages basically computes the position of each bubble, allowing to build the chart with ggplot2
.
The ggiraph
library allows to get an interactive circular packing with 1 level of hierarchy. This is really handy: hover the plot and you will get more information concerning each circle.
ggraph
If your dataset is a hierarchy, it is time to switch to other tools. For static versions, the ggraph
package is the best option. It follows the grammar of graphic and makes it a breeze to customize the appearance following the same logic than ggplot2
.
The circlepackeR
library allows to get an interactive circular packing with several levels of hierarchy. Click on a group to zoom on it. The post describes how to use the package from different types of input dataset.