Struct GroupedData 

pub struct GroupedData(/* private fields */);

Root-owned GroupedData; delegates to the Polars backend.

Implementations

impl GroupedData

pub fn count(&self) -> Result<DataFrame, PolarsError>

pub fn sum(&self, column: &str) -> Result<DataFrame, PolarsError>

pub fn min(&self, column: &str) -> Result<DataFrame, PolarsError>

pub fn max(&self, column: &str) -> Result<DataFrame, PolarsError>

pub fn mean(&self, column: &str) -> Result<DataFrame, PolarsError>

pub fn avg(&self, columns: &[&str]) -> Result<DataFrame, PolarsError>

pub fn agg(&self, exprs: Vec<Expr>) -> Result<DataFrame, PolarsError>

pub fn agg_columns( &self, aggregations: Vec<Column>, ) -> Result<DataFrame, PolarsError>

pub fn agg_expr_ir(&self, exprs: &[ExprIr]) -> Result<DataFrame, EngineError>

Aggregate using ExprIr expressions (e.g. sum(col(“x”)), count(col(“y”)) from core).

pub fn pivot( &self, pivot_col: &str, values: Option<Vec<String>>, ) -> PivotedGroupedData