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\name{SparseArray-Logic-methods}
\alias{SparseArray-Logic-methods}
\alias{SparseArray_Logic-methods}
\alias{SparseArray-Logic}
\alias{SparseArray_Logic}
\alias{SparseArray-logic-methods}
\alias{SparseArray_logic-methods}
\alias{SparseArray-logic}
\alias{SparseArray_logic}
\alias{!,SparseArray-method}
\alias{Logic,SVT_SparseArray,vector-method}
\alias{Logic,vector,SVT_SparseArray-method}
\alias{Logic,SVT_SparseArray,SVT_SparseArray-method}
\alias{Logic,SVT_SparseArray,array-method}
\alias{Logic,array,SVT_SparseArray-method}
\title{'Logic' operations on SparseArray objects}
\description{
\link{SparseArray} derivatives support operations from the \code{Logic}
group (i.e. \code{&} and \code{|}), with some restrictions.
See \code{?\link[methods]{S4groupGeneric}} in the \pkg{methods} package
for more information about the \code{Logic} group generic.
IMPORTANT NOTES:
\itemize{
\item Only \link{SVT_SparseArray} objects are supported at the moment.
Support for \link{COO_SparseArray} objects might be added in the
future.
\item In base R, \code{Logic} operations support input of \code{type()}
\code{"logical"}, \code{"integer"}, \code{"double"}, or
\code{"complex"}. However, the corresponding methods for
\link{SVT_SparseArray} objects only support objects of
\code{type()} \code{"logical"} for now.
}
}
\value{
A \link{SparseArray} derivative of \code{type()} \code{"logical"} and
same dimensions as the input object(s).
}
\seealso{
\itemize{
\item \code{\link[methods]{S4groupGeneric}} in the \pkg{methods} package.
\item \link{SparseArray} objects.
\item Ordinary \link[base]{array} objects in base R.
}
}
\examples{
svt1 <- svt2 <- SVT_SparseArray(dim=c(15, 6))
svt1[cbind(1:15, 2)] <- c(TRUE, FALSE, NA)
svt1[cbind(1:15, 5)] <- c(TRUE, NA, NA, FALSE, TRUE)
svt2[c(2, 6, 12:17, 22:33, 55, 59:62, 90)] <- c(TRUE, NA)
svt1 & svt2
svt1 | svt2
## Sanity checks:
m1 <- as.matrix(svt1)
m2 <- as.matrix(svt2)
stopifnot(
identical(as.matrix(svt1 & svt2), m1 & m2),
identical(as.matrix(svt1 | svt2), m1 | m2)
)
}
\keyword{array}
\keyword{methods}
\keyword{algebra}
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