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\name{bind.sparse3Darray}
\alias{bind.sparse3Darray}
\title{
Combine Three-Dimensional Sparse Arrays
}
\description{
Two sparse arrays will be joined to make a larger sparse array.
}
\usage{
bind.sparse3Darray(A, B, along)
}
\arguments{
\item{A,B}{
Sparse three-dimensional arrays
(objects of class \code{"sparse3Darray"})
or data acceptable to \code{\link{as.sparse3Darray}}.
}
\item{along}{
The dimension along which the two arrays will be joined.
An integer from 1 to 3.
}
}
\details{
This operation is similar to \code{\link[base]{rbind}}, \code{\link[base]{cbind}}
and \code{\link[abind]{abind}}. The two 3D arrays \code{A} and \code{B}
will be joined to make a larger 3D array by concatenating them along
the dimension specified by \code{along}.
The arguments \code{A} and \code{B} should be sparse three-dimensional arrays
(objects of class \code{"sparse3Darray"})
or data acceptable to \code{\link{as.sparse3Darray}}.
They must have identical array dimensions except in the dimension
specified by \code{along}.
}
\value{
A sparse three-dimensional array (object of class \code{"sparse3Darray"}).
}
\author{
\spatstatAuthors.
}
\seealso{
\code{\link{as.sparse3Darray}},
\code{\link{methods.sparse3Darray}}.
See \code{\link[abind]{abind}} for joining non-sparse arrays.
}
\examples{
M <- sparse3Darray(i=1:3, j=c(3,1,2), k=4:2,
x=runif(3), dims=rep(4, 3))
dim(M)
U <- M[ , 1:3, ]
dim(U)
V <- bind.sparse3Darray(M, U, along=2)
dim(V)
}
\keyword{array}
\keyword{sparse}
\keyword{manip}
|
