8.16 Mosaic plots and the vcd package

• Although mosaic charts can be created with ggplot2 using the ggmosaic package, the author recommends using the vcd package instead, which won’t create ggplot2 graphs, but provides a more comprehensive approach to visualizing categorical data.

• In a mosaic plot, the size of the tile is proportional to the percentage of cases in that combination of levels.

• For example, as seen below, more Titanic passengers perished than survived, and those that perished were primarily 3rd class male passengers and male crew (the largest group).

# create a mosaic plot from the table
library(vcd)
mosaic(tbl, main = "Titanic data")