Trait polars::chunked_array::ops::ChunkApplyKernel

pub trait ChunkApplyKernel<A> {
    pub fn apply_kernel<F>(&self, f: F) -> Self
    where
        F: Fn(&A) -> ArrayRef;
    pub 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

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

Apply kernel and return result as a new ChunkedArray.

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

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Implementors

impl ChunkApplyKernel<GenericStringArray<i32>> for Utf8Chunked

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

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

impl<T> ChunkApplyKernel<PrimitiveArray<T>> for ChunkedArray<T> where
    T: PolarsPrimitiveType, 

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

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

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