R: Semivariance values for a given spatio-temporal variogram...
variogramSurface
R Documentation
Semivariance values for a given spatio-temporal variogram model
Description
Generates a surface of semivariance values given a spatio-temporal variogram model (one of separable, productSum, sumMetric, simpleSumMetric or metric)
Usage
variogramSurface(model, dist_grid, ...)
Arguments
model
A spatio-temporal variogram model generated through vgmST or fit.StVariogram.
dist_grid
A data.frame with two columns: spacelag and timelag.
...
Additional arguments passed on to the underlying variogram functions.
Value
A data.frame with columns spacelag, timelag and gamma.
Author(s)
Benedikt Graeler
See Also
See variogramLine for the spatial version and fit.StVariogram for the estimation of spatio-temporal variograms.
Examples
separableModel <- vgmST("separable",
space=vgm(0.86, "Exp", 476, 0.14),
time =vgm( 1, "Exp", 3, 0),
sill=113)
data(vv)
if(require(lattice)) {
plot(vv, separableModel, wireframe=TRUE, all=TRUE)
}
# plotting of sample and model variogram
plot(vv, separableModel)