Exercise

Changing the data type to category

Since the rating column only has a few possible values, you'll change its data type to category in order to store the data more efficiently. You'll also specify a logical order for the categories, which will be useful for future exercises.

Instructions

100 XP
  • Create a CategoricalDtype object called cats that lists the weather ratings in a logical order: 'good', 'bad', 'worse'. Make sure to specify that the categories should be treated as ordered.
  • Use the cats object to change the data type of the rating column from object to category.
  • Examine the head of the rating column to confirm that the categories are logically ordered.