Struct PartialReduction 

pub struct PartialReduction { /* private fields */ }

The mergeable state of one reduction over one chunk.

Implementations

impl PartialReduction

pub fn new( a: &NdArrowArray, axes: Option<&[&str]>, op: Reduction, ) -> Result<Self>

Reduce one chunk. Median, quantiles and arg reductions cannot merge.

pub fn dims(&self) -> &Dimensions

The dimensions of the result.

pub fn merge(&self, other: &Self) -> Result<Self>

Combine with the partial of another chunk.

pub fn finish(&self) -> Result<NdArrowArray>

The reduction result.

Trait Implementations

impl Clone for PartialReduction

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PartialReduction

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

Formats the value using the given formatter.