Module helpers 

Explicit helper APIs that may allocate.

These helpers are intentionally separated from the zero-copy bridge path.

Functions

cast_f32_to_f64

Casts PrimitiveArray<f32> to PrimitiveArray<f64>.

cast_f64_to_f32

Casts PrimitiveArray<f64> to PrimitiveArray<f32>.

compact_non_null

Compacts a primitive array by removing null positions.

densify_csr_view

Densifies a CSR view into an Arrow FixedSizeListArray.

fill_nulls_with_mean

Fills nulls in a primitive array with the mean of non-null values.

fill_nulls_with_zero

Fills nulls in a primitive array with the additive identity (0).

reshape_primitive_to_array2

Reinterprets a primitive Arrow array as a 2D ndarray view.

reshape_primitive_to_arrayd

Reinterprets a primitive Arrow array as an ND ndarray view.

to_standard_layout

Converts an owned ndarray array to standard (C-contiguous) layout.