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Let's flip some axes

First, we can practice rotating a plot. Provided is code that makes a bar plot of the number of cases of pertussis in the Americas region (AMR) in 1980. You will notice it's almost unreadable.

First, to help see patterns that may be in the data, reorder() the columns in descending order of cases.

Next, let's coord_flip() the axes to make it possible to read the country names.

Cet exercice fait partie du cours

Visualization Best Practices in R

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Instructions

  • reorder() the x-axis by descending order of cases
  • Add coord_flip() to the plot to swap x and y-axes.

Exercice interactif pratique

Essayez cet exercice en complétant cet exemple de code.

amr_pertussis <- who_disease %>% 
	filter(   # filter data to our desired subset
		region == 'AMR', 
		year == 1980, 
		disease == 'pertussis'
	)
# Set x axis as country ordered with respect to cases. 
ggplot(amr_pertussis, aes(x = ___, y = cases)) +
	geom_col() +
	# flip axes
	___
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