fromRealpython2 months agoHow to Group Data Using Polars .group_by() - Real PythonPolars provides various methods to summarize and aggregate data, including using .group_by() and .filter().Pivot tables in Polars allow complex aggregation and grouping of datasets.
frommedium.com3 months agoSpark Scala Exercise 9: Joining Two Datasets in SparkMastering Inner, Left, Right, and OuterJoining datasets in Spark Scala allows for effective data analysis and relationship understanding.
frommedium.com3 months agoSpark Scala Exercise 4: DataFrame Schema Exploration (with Case Classes)Understand how Spark infers schemas and the importance of Scala case classes for type safety.
Data sciencefromRealpython4 months agoWorking With Python Polars - Real PythonPolars is an emerging high-performance DataFrame library for efficient data manipulation.
fromRealpython5 months agoHow to Work With Polars LazyFrames - Real PythonPolars LazyFrame enhances data processing efficiency through lazy evaluation and optimized query plans.