Trait polars_core::chunked_array::ops::ChunkVar

pub trait ChunkVar<T> {
    fn var(&self, _ddof: u8) -> Option<T> { ... }
    fn std(&self, _ddof: u8) -> Option<T> { ... }
}

Variance and standard deviation aggregation.

Provided Methods

fn var(&self, _ddof: u8) -> Option<T>

Compute the variance of this ChunkedArray/Series.

fn std(&self, _ddof: u8) -> Option<T>

Compute the standard deviation of this ChunkedArray/Series.

Implementors

impl ChunkVar<bool> for BooleanChunked

impl ChunkVar<f32> for Float32Chunked

impl ChunkVar<f64> for Float64Chunked

impl ChunkVar<Series> for ListChunked

impl ChunkVar<String> for Utf8Chunked

impl<T> ChunkVar<f64> for ChunkedArray<T>where
    T: PolarsIntegerType,
    <T::Native as Simd>::Simd: Add<Output = <T::Native as Simd>::Simd> + Sum<T::Native> + SimdOrd<T::Native>,

impl<T: PolarsObject> ChunkVar<Series> for ObjectChunked<T>

Available on crate feature object only.