Q: You’re working with a dataset that contains categorical variables. You notice that some of the strings are misspelled or are not capitalized. What function can you use to fix these errors when a condition is met?
or
Q: The dataset you’re working with includes categorical variables. You see that a few of the strings are either capitalized incorrectly or not at all. When a condition is satisfied, what function can you use to correct these errors?
- ELSE
- CASE
- WHEN
- THEN
Explanation: When a certain condition is satisfied, you may use the CASE statement in conjunction with string manipulation routines to correct misspelled or incorrectly capitalized texts that are included inside category variables. For instance, you might utilize functions in SQL such as UPPER or LOWER to guarantee that the capitalization is consistent, and you could use CASE to handle particular situations. Both of these functions are available.
