R: Natural scale

RMnatsc {RandomFields} | R Documentation

## Natural scale

### Description

`RMnatsc` is a stationary isotropic covariance model that depends on a stationary isotropic covariance model phi. The covariance is given by

C(h) = phi(h / s)

, where the argument `s` is chosen by `RMnatsc` such that the practical range or the mathematical range, if finite) is 1.

### Usage

    RMnatsc(phi, var, scale, Aniso, proj)

### Arguments

`phi` | a stationary isotropic covariance `RMmodel`.
`var,scale,Aniso,proj` | optional arguments; same meaning for any `RMmodel`. If not passed, the above covariance function remains unmodified.

### Details

For internal use only.

### Value

`RMnatsc` returns an object of class `RMmodel`

### Author(s)

Martin Schlather, schlather@math.uni-mannheim.de

### See Also

`RMmodel`, `RFsimulate`, `RFfit`.

### Examples

    RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set
    ##                   RFoptions(seed=NA) to make them all random again

    model <- RMnatsc(RMexp())
    x <- seq(0, 10, 0.02)
    plot(RMexp(), model=model)
    RFcov(model, 1)

[Package RandomFields version 3.1.50 Index]