Function kernel_functional_spatial 

pub fn kernel_functional_spatial(
    data_obj: &FdMatrix,
    data_ori: &FdMatrix,
    argvals: Option<&[f64]>,
    h: f64,
    dim: Dim,
) -> Vec<f64>

Compute Kernel Functional Spatial Depth (KFSD), dispatching on Dim.

RKHS-based depth. Dim::One uses Simpson’s weights derived from argvals; Dim::Two uses uniform weights over the flattened surface grid (matching the former kernel_functional_spatial_2d).

Arguments

• data_obj - Data to compute depth for
• data_ori - Reference data
• argvals - Evaluation grid for Dim::One (Some); ignored for Dim::Two (pass None)
• h - Kernel bandwidth
• dim - Dimensionality selector (Dim::One or Dim::Two)