is.owin.Rd
\name{is.owin}
\alias{is.owin}
\title{Test Whether An Object Is A Window}
\description{
Checks whether its argument is a window
(object of class \code{"owin"}).
}
\usage{
is.owin(x)
}
\arguments{
\item{x}{Any object.}
}
\details{
This function tests whether the object \code{x}
is a window object of class
\code{"owin"}. See \code{\link{owin.object}} for details
of this class.
The result is determined to be \code{TRUE} if \code{x}
inherits from \code{"owin"}, i.e. if \code{x}
has \code{"owin"} amongst its classes.
}
\value{
\code{TRUE} if \code{x} is a point pattern,
otherwise \code{FALSE}.
}
\author{\adrian
and \rolf
}
\keyword{spatial}
\keyword{manip}