Function experimental_variogram 

pub fn experimental_variogram<T: Float>(
    coordinates: &ArrayView2<'_, T>,
    values: &ArrayView1<'_, T>,
    n_lags: usize,
    lag_tolerance: Option<T>,
) -> SpatialResult<(Array1<T>, Array1<T>)>

Compute experimental (empirical) variogram from spatial data

Arguments

• coordinates - Spatial coordinates of observations (n × d array)
• values - Observed values at each location (n-vector)
• n_lags - Number of lag distance bins
• lag_tolerance - Tolerance for binning distances (None for automatic)

Returns

• Tuple of (lag distances, variogram values)

Examples

use scirs2_core::ndarray::array;
use scirs2_spatial::variogram::experimental_variogram;

let coords = array![[0.0, 0.0], [1.0, 0.0], [0.0, 1.0], [1.0, 1.0]];
let values = array![1.0, 2.0, 1.5, 2.5];

let (lags, gamma) = experimental_variogram(&coords.view(), &values.view(), 10, None)
    .expect("Failed to compute variogram");