Skip to main content

ChunkApplyKernel

polars_core::chunked_array::ops

Trait ChunkApplyKernel 

Source 
pub trait ChunkApplyKernel<A: Array> {
    // Required methods
    fn apply_kernel(&self, f: &dyn Fn(&A) -> ArrayRef) -> Self;
    fn apply_kernel_cast<S>(
        &self,
        f: &dyn Fn(&A) -> ArrayRef,
    ) -> ChunkedArray<S>
       where S: PolarsDataType;
}
Expand description

Apply kernels on the arrow array chunks in a ChunkedArray.

Required Methods§

Source

fn apply_kernel(&self, f: &dyn Fn(&A) -> ArrayRef) -> Self

Apply kernel and return result as a new ChunkedArray.

Source

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

Apply a kernel that outputs an array of different type.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§