Struct polars::frame::group_by::GroupBy

pub struct GroupBy<'a> {
    pub by: String,
    // some fields omitted
}

Fields

by: String

Implementations

impl<'a> GroupBy<'a>

pub fn select(self, name: &str) -> Self

pub fn mean(&self) -> Result<DataFrame>

Aggregate grouped series and compute the mean per group.

pub fn sum(&self) -> Result<DataFrame>

Aggregate grouped series and compute the sum per group.

pub fn min(&self) -> Result<DataFrame>

Aggregate grouped series and compute the minimal value per group.

pub fn max(&self) -> Result<DataFrame>

Aggregate grouped series and compute the maximum value per group.

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

Aggregate grouped series and compute the number of values per group.

Trait Implementations

impl<'a> Clone for GroupBy<'a>

fn clone(&self) -> GroupBy<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for GroupBy<'a>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.