Function convert_array

src/memory/utils/mod.rs:532–546

Convert dense ndarray between numeric types. Transforms a dense array from one numeric type to another, preserving the multidimensional structure. Handles dynamic dimensionality efficiently. ## Parameters `array` - Source array with dynamic dimensions ## Type Parameters `T` - Source numeric type `U` - Target floating-point type ## Returns New array with same shape but converted element type

(
    array: ArrayBase<OwnedRepr<T>, Dim<IxDynImpl>>,
)

/// ## Returns
/// New array with same shape but converted element type
fn convert_array<T, U>(
    array: ArrayBase<OwnedRepr<T>, Dim<IxDynImpl>>,
) -> anyhow::Result<ArrayBase<OwnedRepr<U>, Dim<IxDynImpl>>>
where
    T: NumericOps + NumCast + Copy,
    U: NumericOps + NumCast + Copy + Float,
{
    let shape = array.raw_dim(); // Keep the dynamic dimension

    let (vec, _) = array.into_raw_vec_and_offset();

    let new_values: Vec<U> = vec.into_iter().map(|x| NumCast::from(x).unwrap()).collect();

    Ok(ArrayBase::from_shape_vec(shape, new_values)?)
}

/// Create a Polars DataFrame from a HashMap of numeric vectors.
///