Trait polars_core::chunked_array::ops::ChunkTake

pub trait ChunkTake {
    unsafe fn take_unchecked<I, INulls>(
        &self, 
        indices: TakeIdx<'_, I, INulls>
    ) -> Self
    where
        Self: Sized,
        I: TakeIterator,
        INulls: TakeIteratorNulls;
    fn take<I, INulls>(&self, indices: TakeIdx<'_, I, INulls>) -> Result<Self>
    where
        Self: Sized,
        I: TakeIterator,
        INulls: TakeIteratorNulls;
}

Fast access by index.

Required methods

unsafe fn take_unchecked<I, INulls>(
    &self,
    indices: TakeIdx<'_, I, INulls>
) -> Self where
    Self: Sized,
    I: TakeIterator,
    INulls: TakeIteratorNulls, 

Take values from ChunkedArray by index.

Safety

Doesn’t do any bound checking.

fn take<I, INulls>(&self, indices: TakeIdx<'_, I, INulls>) -> Result<Self> where
    Self: Sized,
    I: TakeIterator,
    INulls: TakeIteratorNulls, 

Take values from ChunkedArray by index. Note that the iterator will be cloned, so prefer an iterator that takes the owned memory by reference.

Implementors

impl ChunkTake for BooleanChunked

impl ChunkTake for CategoricalChunked

This is supported on crate feature dtype-categorical only.

impl ChunkTake for ListChunked

impl ChunkTake for Utf8Chunked

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

impl<T: PolarsObject> ChunkTake for ObjectChunked<T>

This is supported on crate feature object only.