Trait polars_core::chunked_array::ops::ChunkApplyKernel

pub trait ChunkApplyKernel<A: Array> {
    fn apply_kernel<F>(&self, f: F) -> Self
    where
        F: Fn(&A) -> ArrayRef;
    fn apply_kernel_cast<F, S>(&self, f: F) -> ChunkedArray<S>
    where
        F: Fn(&A) -> ArrayRef,
        S: PolarsDataType;
}

Apply kernels on the arrow array chunks in a ChunkedArray.

Required methods

fn apply_kernel<F>(&self, f: F) -> Self where
    F: Fn(&A) -> ArrayRef, 

Apply kernel and return result as a new ChunkedArray.

fn apply_kernel_cast<F, S>(&self, f: F) -> ChunkedArray<S> where
    F: Fn(&A) -> ArrayRef,
    S: PolarsDataType, 

Apply a kernel that outputs an array of different type.

Implementors

impl ChunkApplyKernel<BooleanArray> for BooleanChunked

impl ChunkApplyKernel<Utf8Array<i64>> for Utf8Chunked

impl<T> ChunkApplyKernel<PrimitiveArray<<T as PolarsNumericType>::Native>> for ChunkedArray<T> where
    T: PolarsNumericType,