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

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


You can use expand() to tweak your scale limits


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

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)

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