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Labeling facets

If your factor levels are not clear, your facet labels may be confusing. You can assign proper labels in your original data before plotting (see next exercise), or you can use the labeller argument in the facet layer.

The default value is

  • label_value: Default, displays only the value

Common alternatives are:

  • label_both: Displays both the value and the variable name
  • label_context: Displays only the values or both the values and variables depending on whether multiple factors are faceted

Cet exercice fait partie du cours

Intermediate Data Visualization with ggplot2

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Exercice interactif pratique

Essayez cet exercice en complétant cet exemple de code.

# Plot wt by mpg
ggplot(mtcars, aes(wt, mpg)) +
  geom_point() +
  # The default is label_value
  ___(___ = ___(___))
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