Trait polars_core::chunked_array::ops::TakeRandom

pub trait TakeRandom {
    type Item;
    fn get(&self, index: usize) -> Option<Self::Item>;
    unsafe fn get_unchecked(&self, index: usize) -> Self::Item;
}

Random access

Associated Types

type Item

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Required methods

fn get(&self, index: usize) -> Option<Self::Item>

Get a nullable value by index.

Safety

Out of bounds access doesn't Error but will return a Null value

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

Get a value by index and ignore the null bit.

Safety

This doesn't check if the underlying type is null or not and may return an uninitialized value.

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Implementors

impl TakeRandom for BooleanChunked

type Item = bool

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

impl TakeRandom for CategoricalChunked

type Item = u32

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

impl TakeRandom for ListChunked

type Item = Series

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

impl<'a> TakeRandom for &'a Utf8Chunked

type Item = &'a str

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

impl<'a, T> TakeRandom for &'a ChunkedArray<T> where
    T: PolarsPrimitiveType, 

type Item = T::Native

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

impl<'a, T> TakeRandom for NumTakeRandomChunked<'a, T> where
    T: PolarsNumericType, 

type Item = T::Native

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

impl<'a, T> TakeRandom for NumTakeRandomCont<'a, T> where
    T: Copy, 

type Item = T

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

impl<T> TakeRandom for ChunkedArray<T> where
    T: PolarsPrimitiveType, 

type Item = T::Native

fn get(&self, index: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, index: usize) -> Self::Item

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