set upper limit in ggplot to include label greater than the maximum value

Question

My data range always seems to be greater than the top label in the y-axis. Is there a way I can automatically include it without manually setting limits?

e.g. in

Answer 1

Maybe with scale_y_continuous and the expand argument:

ggplot(data.frame(x=1:10, y=c(11:17,5:3)), aes(x,y)) +
  geom_point() +
  scale_y_continuous(expand=c(0.5, 0.5))