polars_core::frame

Module group_by

Source
Available on crate feature algorithm_group_by only.

Modules§

aggregations
expr

Structs§

GroupBy
Returned by a group_by operation on a DataFrame. This struct supports several aggregations.
GroupPositions
GroupsIdx
Indexes of the groups, the first index is stored separately. this make sorting fast.
GroupsTypeIter
GroupsTypeParIter

Enums§

GroupByMethod
GroupsIndicator
GroupsType

Traits§

IntoGroupsType
Used to create the tuples for a group_by operation.

Functions§

fmt_group_by_column

Type Aliases§

BorrowIdxItem
GroupsSlice
Every group is indicated by an array where the
IdxItem