RandomFields (version 3.0.5)

RMqexp: Variant of the exponential model

Description

The covariance function is

$$C(x)= ( 2 e^{-x} - \alpha e^{-2x} ) / ( 2 - \alpha )$$

Usage

RMqexp(alpha, var, scale, Aniso, proj)

Arguments

alpha

value in $[0,1]$

var,scale,Aniso,proj

optional arguments; same meaning for any RMmodel. If not passed, the above covariance function remains unmodified.

Value

• RMqexp returns an object of class RMmodel

References

• ?

See Also

RMmodel,

Examples

RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set
##                   RFoptions(seed=NA) to make them all random again
model <- RMqexp(alpha=0.95, scale=0.2)
x <- seq(0, 10, if (interactive()) 0.02 else 1) 
plot(model)
plot(RFsimulate(model, x=x))
FinalizeExample()