# DataFrame Basics
📝 **This chapter is under construction.**
This case study demonstrates using DataFrames for tabular data manipulation
in aprender, following EXTREME TDD principles.
**Topics covered:**
- Creating DataFrames from data
- Column selection and filtering
- Converting to Matrix for ML
- Statistical summaries
**See also:**
- [What is EXTREME TDD?](../methodology/what-is-extreme-tdd.md)
- [API Design](../best-practices/api-design.md)