Trait ChunkVar 

pub trait ChunkVar {
    // Provided methods
    fn var(&self, _ddof: u8) -> Option<f64> { ... }
    fn std(&self, _ddof: u8) -> Option<f64> { ... }
}

Variance and standard deviation aggregation.

Provided Methods

fn var(&self, _ddof: u8) -> Option<f64>

Compute the variance of this ChunkedArray/Series.

fn std(&self, _ddof: u8) -> Option<f64>

Compute the standard deviation of this ChunkedArray/Series.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl ChunkVar for ChunkedArray<BooleanType>

impl ChunkVar for ChunkedArray<FixedSizeListType>

Available on crate feature dtype-array only.

impl ChunkVar for ChunkedArray<ListType>

impl ChunkVar for ChunkedArray<StringType>

impl<T> ChunkVar for ChunkedArray<ObjectType<T>>

where T: PolarsObject,

Available on crate feature object only.

impl<T> ChunkVar for ChunkedArray<T>

where T: PolarsNumericType, ChunkedArray<T>: ChunkAgg<<T as PolarsNumericType>::Native>,