Spacing of discrete axis by a categorical variable

Question

I have a categorical axis where i\'d like to visually separate groups within that categorical variable. I don\'t want to facet because it takes up too much space and is visu

Answer 1

You can get the result you are looking for via the breaks and limits arguments to scale_x_discrete. Set the breaks to the levels of the factor on the x-axis and the limits to the factor levels with spacers were you want/need them.

Here is an example:

library(ggplot2)

dd <- data.frame(x = factor(letters[1:10]), y = 1:10)

ggplot(dd) +
  aes(x = x, y = y) +
  geom_point() +
  scale_x_discrete(breaks = levels(dd$x),
                   limits = c(levels(dd$x)[1], "skip", levels(dd$x)[-1]))