This post explains how to build a very basic
treemap with R
. It uses the
treemap
package, provides reproducible code and
explains how input data must be formatted.
This is the most basic treemap you can do. The input dataset is simple: we just have 3 groups, and each has a value which we map to an area.
It allows to learn the syntax of the treemap
library:
you need to provide at least a dataset (data
), the
column that provides groups (index
), and the column
that gives the size of each group (vSize
).
See graph #235 to learn how to add subgroups, and graph #236 to customize the chart appearance.