Trait polars_core::chunked_array::ops::ChunkAgg

pub trait ChunkAgg<T> {
    fn sum(&self) -> Option<T> { ... }
    fn min(&self) -> Option<T> { ... }
    fn max(&self) -> Option<T> { ... }
    fn mean(&self) -> Option<f64> { ... }
}

Aggregation operations

Provided Methods

fn sum(&self) -> Option<T>

Aggregate the sum of the ChunkedArray. Returns None if the array is empty or only contains null values.

fn min(&self) -> Option<T>

fn max(&self) -> Option<T>

Returns the maximum value in the array, according to the natural order. Returns None if the array is empty or only contains null values.

fn mean(&self) -> Option<f64>

Returns the mean value in the array. Returns None if the array is empty or only contains null values.

Implementors

impl ChunkAgg<u32> for BooleanChunked

Booleans are casted to 1 or 0.

impl<T> ChunkAgg<<T as PolarsNumericType>::Native> for ChunkedArray<T> where
    T: PolarsNumericType,
    <T::Native as Simd>::Simd: Add<Output = <T::Native as Simd>::Simd> + Sum<T::Native> + SimdOrd<T::Native>,