1. Wrapping up
Congratulations! You've made it to the end of the course.
2. Chapter 1: Creating DataFrames and Selecting Data
In Chapter 1, you learned the fundamentals of working with Polars DataFrames. You mastered loading data, inspecting its structure, and performing basic operations like selection, sorting, and summarization.
3. Chapter 2: Transforming Data with Expressions
Chapter 2 introduced you to Polars' powerful expression system. You learned how to transform data efficiently using expressions, work with multiple columns, and got your first taste of lazy mode for query optimization.
4. Chapter 3: Analyzing data
In Chapter 3, you explored data analysis. You learned how to filter data effectively, handle missing values, perform group-by aggregations, and convert data between long and wide format.
5. Congratulations!
Congratulations on completing the course! You now have a solid foundation in Polars and are ready to tackle real-world data analysis challenges. Best of luck with your future data analysis projects!