Reordering elements in the plot

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

100 XP

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, 2006 always last.