Python for Data Analysis: Step-By-Step with Projects - Mapping New Values

The video tutorial explains how to use the map method in pandas to transform data in a DataFrame. It covers mapping values using dictionaries and functions, including built-in, lambda, and custom functions. Examples demonstrate transforming categorical data and simplifying data representation, such as converting wind directions to cardinal points.

What is the significance of the mapping criteria in the map method?

How can the map method be used to convert floating numbers to integers?

What is the difference between using a Lambda function and a regular function with the map method?

How can you apply the map method to categorize wind direction values?