changing the size of the plot when its a catergorical x axis

[daisyb]

I want to reduce the plot size of my graph, in order to reduce the space either side of my lines. How could I do this using ggplot2.

I want the plot width to be something like what is in the red square

Thanks

[andresrcs]

You can use expand() to tweak your scale limits

library(ggplot2)

ggplot(iris, aes(Species, Sepal.Width)) +
    geom_point()

ggplot(iris, aes(Species, Sepal.Width)) +
    geom_point() +
    scale_x_discrete(expand = c(0.05,0.05))

^{Created on 2019-04-07 by the reprex package (v0.2.1.9000)}