raw_structvar {spatialwarnings}

Structural variance

Description

Compute the structural variance on a matrix.

Usage

raw_structvar(mat, model = "sph", nmax = 100000L, nbins = 32, cutoff = NULL)

Arguments

mat

A matrix

model

The variogram model to use, either "sph" (for a spherical model) or "exp" (for an exponential model)

nmax

The maximum number of pairs of cells to use when computing the variogram

nbins

Number of distance bins to use to compute the variogram

cutoff

Maximum distance to consider in the variogram. If NULL, then a distance equal to one third of the diagonal of the matrix is used

See Also

raw_variogram_metrics, variogram_sews

Examples

raw_structvar(serengeti[[5]])