Surely there were some missing answers in the satisfaction column. Let's see them!
Change the satisfaction level NA to "unknown" using fct_explicit_na(). Assign it to the satisfaction column of the cars dataset.
Recode the levels so that there are only these levels: Neutral, Satisfied, Dissatisfied, and unknown. Use fct_collapse().
Use fct_count() on the satisfaction column to count the new satisfaction levels.
Type:
cars$satisfaction <- fct_explicit_na(cars$satisfaction, "unknown")
cars$satisfaction <- fct_collapse(cars$satisfaction,
"Dissatisfied" = c(
"Moderately dissatisfied",
"Slightly dissatisfied"),
"Satisfied" = c(
"Very satisfied",
"Moderately satisfied",
"Slightly satisfied"))
fct_count(cars$satisfaction)
