Expand description
GroupBy: hash-based grouping with aggregation.
Supports the polars pattern: df.lazy().group_by([cols]).agg([exprs])
via df.group_by(&["col1", "col2"])?.agg(&[Agg::Sum("val"), Agg::Count])
Structs§
- GroupBy
- Intermediate grouping result. Call
.agg()to produce a DataFrame.
Enums§
- Agg
- Aggregation operation to apply within each group.