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Reordering elements in the plot

As shown in the video, use mutate() and fct_reorder() to change the factor level ordering of a variable.

Diese Übung ist Teil des Kurses

Communicating with Data in the Tidyverse

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Anleitung zur Übung

  • Use fct_reorder() in the forcats package to reorder the country factor variable by weekly working hours in the year 2006.
    • To do that, specify the correct summary function as the third argument of fct_reorder. It should arrange the country factor levels by the last element in the working_hours variable.
  • In order to do the above, you first need to arrange() the data set by year – so 1996 is always first in each country group and 2006 is always last.

Interaktive Übung

Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.

library(forcats)

# Reorder country factor levels
ilo_data <- ilo_data %>%
  # Arrange data frame
  arrange(___) %>%
  # Reorder countries by working hours in 2006
  mutate(country = fct_reorder(___,
                               ___,
                               ___))

# Plot again
ggplot(ilo_data) +
  geom_path(aes(x = working_hours, y = country),
            arrow = arrow(length = unit(1.5, "mm"), type = "closed")) +
    geom_text(
          aes(x = working_hours,
              y = country,
              label = round(working_hours, 1))
          )
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