15.6 Faceting a Plot

We can also facet a plot with a call to facet_grid().

dotPlot +
  facet_grid(cols = vars(sex))

dotPlot +
  facet_grid(rows = vars(sex))

dotPlot +
  facet_grid(cols = vars(sex), rows = vars(island))

A slightly different notation is also valid to express the above graph

dotPlot +
  facet_grid(island ~ sex)

See additional facet options on the ggplot facet_grid() reference page.