matern32 {demu}

Calculate the correlation matrix according to the Matern model with \nu=3/2.

Description

matern32() is a helper function that constructs a correlation matrix according to the Matern model with parameter \nu=3/2 and lengthscales given by the parameter vector theta. The design must have been already formated in distlist format using the function makedistlist().

Usage

matern32(l.d,theta)

Arguments

l.d

Current design distance matrices in distlist format

theta

A vector of range parameters

Value

A list containing the constructed correlation matrix.

See Also

demu-package rhomat matern52 wendland1 wendland2 generalized.wendland

Examples

library(demu)

design=matrix(runif(10,0,1),ncol=2,nrow=5)
theta=rep(0.2,2)
l.d=makedistlist(design)
R=matern32(l.d,theta)$R
R