RandomFields (version 3.0.10)

RMnatsc: 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 parameter 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 parameters; same meaning for any RMmodel. If not passed, the above covariance function remains unmodified.

Value

• RMnatsc returns an object of class RMmodel

Details

For internal use only.

See Also

RMmodel, RFsimulate, RFfit.

Examples

RFoptions(seed=0)
model <- RMnatsc(RMexp())
x <- seq(0, 10, if (interactive()) 0.02 else 1) 
plot(model, ylim=c(0,1)) 
print(RFcov(model, 1)) 
plot(RFsimulate(model, x=x))
RFoptions(seed=NA)