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) -> Option<Self::Item>
    where
        Self: Sized,
    { ... }
}

Random access

Associated Types

type Item

Required methods

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

Get a nullable value by index.

Panics

Panics if index >= self.len()

Provided methods

unsafe fn get_unchecked(&self, index: usize) -> Option<Self::Item> where
    Self: Sized, 

Get a value by index and ignore the null bit.

Safety

Does not do bound checks.

Implementors

impl TakeRandom for BooleanChunked

type Item = bool

impl TakeRandom for CategoricalChunked

This is supported on crate feature dtype-categorical only.

type Item = u32

impl TakeRandom for ListChunked

type Item = Series

impl<'a> TakeRandom for &'a Utf8Chunked

type Item = &'a str

impl<'a> TakeRandom for BoolTakeRandom<'a>

type Item = bool

impl<'a> TakeRandom for BoolTakeRandomSingleChunk<'a>

type Item = bool

impl<'a> TakeRandom for ListTakeRandom<'a>

type Item = Series

impl<'a> TakeRandom for ListTakeRandomSingleChunk<'a>

type Item = Series

impl<'a> TakeRandom for Utf8TakeRandom<'a>

type Item = &'a str

impl<'a> TakeRandom for Utf8TakeRandomSingleChunk<'a>

type Item = &'a str

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

type Item = T::Native

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

type Item = T

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

type Item = T

impl<'a, T> TakeRandom for NumTakeRandomSingleChunk<'a, T> where
    T: NumericNative, 

type Item = T

impl<'a, T: PolarsObject> TakeRandom for &'a ObjectChunked<T>

This is supported on crate feature object only.

type Item = &'a T

impl<'a, T: PolarsObject> TakeRandom for ObjectTakeRandom<'a, T>

This is supported on crate feature object only.

type Item = &'a T

impl<'a, T: PolarsObject> TakeRandom for ObjectTakeRandomSingleChunk<'a, T>

This is supported on crate feature object only.

type Item = &'a T

impl<N, S, M, I> TakeRandom for TakeRandBranch3<N, S, M> where
    N: TakeRandom<Item = I>,
    S: TakeRandom<Item = I>,
    M: TakeRandom<Item = I>, 

type Item = I

impl<S, M, I> TakeRandom for TakeRandBranch2<S, M> where
    S: TakeRandom<Item = I>,
    M: TakeRandom<Item = I>, 

type Item = I

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

type Item = T::Native