Variable plotting spaces II: categorical variables
When you have a categorical variable with many levels which are not all present in each sub-group of another variable, it's usually desirable to drop the unused levels.
By default, each facet of a plot is the same size. This behavior can be changed with the spaces
argument, which works in the same way as scales
: "free_x"
allows different sized facets on the x-axis, "free_y"
, allows different sized facets on the y-axis, "free"
allows different sizes in both directions.
Cet exercice fait partie du cours
Intermediate Data Visualization with ggplot2
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
ggplot(mtcars, aes(x = mpg, y = car, color = fam)) +
geom_point() +
# Facet rows by gear
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