yonesuke Polars Skill
Fast data manipulation in Python.
Contents
- Examples
- Lazy API, GroupBy, Window Functions.
Core Concepts
- Lazy API:
df.lazy()...collect(). Preferred for performance (Query Optimization). - Expressions:
pl.col("a") * 2. Parallelizable logic. - Eager API:
df.filter(...). Good for debugging.
Usage
Use for all tabular data tasks unless pandas is strictly required by legacy dependencies.