API Reference

Polars.NET provides comprehensive API references for both C# and F#.

C# API Reference

• DataFrame - Eager DataFrame API
• LazyFrame - Lazy evaluation and query planner API
• Expr - Column expressions, arithmetic, strings, dates, and window functions
• Series - 1D Arrow-backed columnar array
• Polars & Selectors - DSL entry points and column selectors
• PolarsSchema - Schema inspection and column types
• LinqExtensions - LINQ query extensions

F# API Reference

• pl - Idiomatic F# DSL module
• DataFrame - Functional DataFrame combinators
• LazyFrame - Functional LazyFrame combinators
• Expr - F# expression builders
• Series - F# Series functions
• Query - F# Query computation expression extensions
• Merge - Functional Merge operators