Function polars_core::frame::group_by::aggregations::_agg_helper_slice
source ยท pub fn _agg_helper_slice<T, F>(groups: &[[IdxSize; 2]], f: F) -> Serieswhere
F: Fn([IdxSize; 2]) -> Option<T::Native> + Send + Sync,
T: PolarsNumericType,
ChunkedArray<T>: IntoSeries,
Available on crate feature
algorithm_group_by
only.