Interface LazyGroupBy

LazyGroupBy

interface LazyGroupBy {
    agg(...aggs: pl.Expr[]): LazyDataFrame;
    head(n?: number): LazyDataFrame;
    len(name?: string): LazyDataFrame;
    tail(n?: number): LazyDataFrame;
}

Index

Methods

agg head len tail

Methods

agg

agg(...aggs: pl.Expr[]): LazyDataFrame
Aggregate the groupby.
Parameters
- ...aggs: pl.Expr[]
Returns LazyDataFrame
- Defined in polars/lazy/groupby.ts:36

head

head(n?: number): LazyDataFrame
Return the first n rows of the groupby.
Parameters
- Optionaln: number
  number of rows to return
Returns LazyDataFrame
- Defined in polars/lazy/groupby.ts:41

len

len(name?: string): LazyDataFrame
Return the number of rows in each group.
Parameters
- Optionalname: string
  Assign a name to the resulting column; if unset, defaults to "len".
Returns LazyDataFrame
- Defined in polars/lazy/groupby.ts:46

tail

tail(n?: number): LazyDataFrame
Return the last n rows of the groupby.
Parameters
- Optionaln: number
  number of rows to return
Returns LazyDataFrame
- Defined in polars/lazy/groupby.ts:51