Remove area between x axis and x ticks

Question

I would like to remove the space between the x axis and the x ticks. It would be the area in the red rectangle. Eg.

ggplot(mtcars, aes(factor(cyl))) + geom_bar()

I came across with loads of info on x label spacing but not on the distance between the x labels and the x axis.

Answer 1

Just add scale_y_continuous(expand = c(0,0)) to your ggplot:

ggplot(mtcars, aes(factor(cyl))) + geom_bar() + 
  scale_y_continuous(expand = c(0, 0))