https://github.com/cran/RandomFields
Tip revision: 743e66d2e258b159f0f5e86922601b1520bf3e03 authored by Martin Schlather on 10 August 2014, 00:00:00 UTC
version 3.0.34
version 3.0.34
Tip revision: 743e66d
RMrational.Rd
\name{RMrational}
\alias{RMrational}
\title{Rational function}
\description{
Defines a simple rational function.
\deqn{f(h) = (a_1 + a_2 z(h)) / (1 + z(h))}
where
\deqn{z(h) = h^top A A^\top h}
}
\usage{
RMrational(A, a)
}
\arguments{
\item{A}{a \eqn{d \times d} matrix}
\item{a}{a vector of one or two components; the second component has
default value zero.}
}
\value{
\command{\link{RMrational}} returns an object of class \code{\link[=RMmodel-class]{RMmodel}}
}
\author{Martin Schlather, \email{schlather@math.uni-mannheim.de}
}
\seealso{
\command{\link{RMmodel}},
\link{S10}
}
\keyword{spatial}
\keyword{models}
\examples{
# see S10
\dontshow{FinalizeExample()}
}