R: Semivariance values for a given spatio-temporal variogram...

variogramSurface {gstat} | 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, covariance = FALSE)

### Arguments

`model` | A spatio-temporal variogram model generated through `vgmST` or `fit.StVariogram`.
`dist_grid` | A data.frame with two columns: `spacelag` and `timelag`.
`covariance` | Whether the covariance should be computed instead of the variogram (default: FALSE).

### 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)

[Package gstat version 2.0-3 Index]