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\name{NaArray-Math-methods}
\alias{NaArray-Math-methods}
\alias{NaArray_Math_methods}
\alias{NaArray-Math}
\alias{NaArray_Math}
\alias{NaArray-math-methods}
\alias{NaArray_math_methods}
\alias{NaArray-math}
\alias{NaArray_math}
\alias{NaArray-Math2-methods}
\alias{NaArray_Math2_methods}
\alias{NaArray-Math2}
\alias{NaArray_Math2}
\alias{NaArray-math2-methods}
\alias{NaArray_math2_methods}
\alias{NaArray-math2}
\alias{NaArray_math2}
\alias{Math,NaArray-method}
\alias{Math2,NaArray-method}
\alias{round,NaArray-method}
\alias{signif,NaArray-method}
\title{'Math' and 'Math2' methods for NaArray objects}
\description{
EXPERIMENTAL!!!
\link{NaArray} objects support all operations from the \code{Math}
and \code{Math2} groups with a few exceptions.
See \code{?\link[methods]{S4groupGeneric}} in the \pkg{methods} package
for more information about the \code{Math} and \code{Math2} group generics.
Note that \code{Math} and \code{Math2} operations only support
\link{NaArray} objects of \code{type()} \code{"double"} at the moment.
\link{NaArray} objects of \code{type()} \code{"integer"} are not
supported yet.
}
\value{
A \link{NaArray} derivative of the same dimensions as the input
object.
}
\seealso{
\itemize{
\item \code{\link[methods]{S4groupGeneric}} in the \pkg{methods} package.
\item \link{NaArray} objects.
\item Ordinary \link[base]{array} objects in base R.
}
}
\examples{
nam <- NaArray(dim=c(15, 6))
nam[c(2, 6, 12:17, 22:33, 55, 59:62, 90)] <-
c(runif(22)*1e4, Inf, -Inf, NA, NaN)
log(nam)
exp(nam)
cos(nam)
lgamma(nam)
## Sanity checks:
m <- as.matrix(nam)
stopifnot(
suppressWarnings(identical(as.matrix(log(nam)), log(m))),
identical(as.matrix(exp(nam)), exp(m)),
suppressWarnings(identical(as.matrix(cos(nam)), cos(m))),
suppressWarnings(identical(as.matrix(lgamma(nam)), lgamma(m)))
)
}
\keyword{array}
\keyword{methods}
\keyword{arith}
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