append.psp.Rd
\name{append.psp}
\alias{append.psp}
\title{Combine Two Line Segment Patterns}
\description{
Combine two line segment patterns into a single pattern.
}
\usage{
append.psp(A, B)
}
\arguments{
\item{A,B}{
Line segment patterns (objects of class \code{"psp"}).
}
}
\value{
Another line segment pattern (object of class \code{"psp"}).
}
\details{
This function is used to superimpose two line segment patterns
\code{A} and \code{B}.
The two patterns must have \bold{identical} windows. If one
pattern has marks, then the other must also have marks
of the same type.
(To combine two point patterns, see \code{superimpose}).
}
\seealso{
\code{\link{psp}},
\code{\link{as.psp}},
\code{\link{superimpose}},
}
\examples{
X <- psp(runif(20), runif(20), runif(20), runif(20), window=owin())
Y <- psp(runif(5), runif(5), runif(5), runif(5), window=owin())
append.psp(X,Y)
}
\author{Adrian Baddeley
\email{adrian@maths.uwa.edu.au}
\url{http://www.maths.uwa.edu.au/~adrian/}
and Rolf Turner
\email{r.turner@auckland.ac.nz}
}
\keyword{spatial}
\keyword{manip}