Trait polars_core::chunked_array::ops::ChunkVar

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

Variance and standard deviation aggregation.

Provided methods

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

Compute the variance of this ChunkedArray/Series.

fn std(&self) -> 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<u32> for CategoricalChunked

impl ChunkVar<Series> for ListChunked

impl ChunkVar<String> for Utf8Chunked

impl<T> ChunkVar<f64> for ChunkedArray<T> where
    T: PolarsIntegerType,
    T::Native: PartialOrd + Num + NumCast, 

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