Cast a variable as a factor

Factors are categorical variables, where the possible values are a fixed and known set. For example, take a simple factor like bake below:

bake <- c("pie", "cake", "neither") 
parse_factor(bake, levels = NULL)

[1] pie  cake neither
Levels: pie cake neither

Remember to use ?parse_factor to read more about the levels argument. And remember that for every parse_* function, there is a col_* function for casting.

This is the last time you'll read in "desserts.csv"!

Adapt your code from the previous exercise to cast result as a factor; detect the factor levels based on the unique values present in each variable. Use glimpse() to check your work.

Take Hint (-30 XP)

Exercise

Cast a variable as a factor

Instructions