Computes the empirical semivariogram in distance bins for visual
assessment of remaining spatial structure in residuals.
Usage
tulpa_variogram(
object,
coords,
n_bins = 15L,
max_dist = NULL,
resid_type = "pearson"
)
Arguments
- object
A fitted model, or a numeric vector of residuals
- coords
N x 2 coordinate matrix (required)
- n_bins
Number of distance bins (default 15)
- max_dist
Maximum distance (default: half the maximum pairwise distance)
- resid_type
Residual type if extracting from model (default "pearson")
Value
A tulpa_variogram data.frame with columns dist, gamma, n_pairs