Trait GenericUniqueKernel

pub trait GenericUniqueKernel {
    // Required methods
    fn unique(&self) -> Self;
    fn n_unique(&self) -> usize;
    fn n_unique_non_null(&self) -> usize;
}

A generic unique kernel that selects the generally applicable unique kernel for an Array.

Required Methods

fn unique(&self) -> Self

Calculate the set of unique elements

fn n_unique(&self) -> usize

Calculate the number of unique elements including null

fn n_unique_non_null(&self) -> usize

Calculate the number of unique elements excluding null

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl GenericUniqueKernel for BooleanArray

fn unique(&self) -> Self

fn n_unique(&self) -> usize

fn n_unique_non_null(&self) -> usize

Implementors