https://github.com/cran/RandomFields
Tip revision: f5e4e9ee01c1569e39dffdd0295f7a2131c83516 authored by Martin Schlather on 13 January 2015, 00:00:00 UTC
version 3.0.55
version 3.0.55
Tip revision: f5e4e9e
RMsign.Rd
\name{RMsign}
\alias{RMsign}
\alias{RRsign}
\title{Random sign}
\description{
\command{RMsign} defines a random sign. It can be used as part of the
model definition of a Poisson field.
}
\usage{
RMsign(phi, p)
}
\arguments{
\item{phi}{shape function of class \code{\link[=RMmodel-class]{RMmodel}}.}
\item{p}{probability of keeping the sign}
}
\details{
\command{RMsign} changes the sign of the shape function \code{phi}
with probability \code{1-p} and keeps it otherwise.
}
\value{
\command{\link{RMsign}} returns an object of class \code{\link[=RMmodel-class]{RMmodel}}
}
\note{
Random univariate or multivariate objects are
usually start with \code{RR} not with \code{RM}.
This is an exception here, as it operates on shape functions.
}
\author{Martin Schlather, \email{schlather@math.uni-mannheim.de}
}
\seealso{
\command{\link{RMmodel}}
\link{RR}.
}
\keyword{spatial}
\keyword{models}
\examples{
RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set
## RFoptions(seed=NA) to make them all random again
model <- RPpoisson(RMsign(RMtent(), p=0.8))
x <- seq(0, 10, if (interactive()) 0.02 else 1)
plot(RFsimulate(model, x=x))
\dontshow{FinalizeExample()}
}