Expand Categorical x-axis in ggplot

Question

I can\'t figure out how to use expand() within scale_x_discrete() to expand a categorical x-axis so that placing a label to the right of points won

Answer 1

Since I'm facing the same problem... I found expand_limits(...) quite useful here:

dat <- data.frame(x= c('a', 'b', 'c'), y= 1:3)
ggplot(data= dat, aes(x= x, y= y)) + 
    geom_point() + 
    expand_limits(x= c(-1, 5))

Or, to avoid hardcoding the limits:

    expand_limits(x= c(-1, length(levels(dat$x)) + 2))

(With ggplot2_3.1.0)