Trait polars_core::frame::group_by::expr::PhysicalAggExpr

pub trait PhysicalAggExpr {
    // Required methods
    fn evaluate(
        &self,
        df: &DataFrame,
        groups: &GroupsProxy
    ) -> PolarsResult<Series>;
    fn root_name(&self) -> PolarsResult<&str>;
}

Available on crate feature algorithm_group_by only.

Required Methods

fn evaluate(&self, df: &DataFrame, groups: &GroupsProxy) -> PolarsResult<Series>

fn root_name(&self) -> PolarsResult<&str>

Implementors