developer-roadmap/roadmaps/python-data-analysis/content/defining-functions@0XtKHqPS6AfhQvhH5cu7Q.md

Defining Functions

User-defined functions are created with the def keyword and encapsulate reusable logic. A function takes parameters, executes a body, and returns a value with return. Writing well-scoped functions makes analysis code modular, testable, and easier to apply across a dataset using Pandas' apply() method.

Visit the following resources to learn more:

• @article@Python Return Multiple Values: 4 Methods & Examples
• @video@Python Functions - Visually Explained