Python for Data Analysis: Step-By-Step with Projects - Renaming Columns

The video tutorial focuses on standardizing column names in a pandas dataframe. It covers the use of string methods like lower, upper, and title to ensure consistent capitalization. The tutorial also explains how to rename columns using the rename method, both with a dictionary and by applying functions. Advanced techniques using the mapper and axis parameters are discussed. Finally, the video highlights the importance of saving the modified dataframe for future use.

What happens to the original DataFrame when you use the rename method?

Describe the difference between using the columns parameter and the mapper parameter in the rename method.

What is the significance of the axis parameter when using the rename method?