\HeaderA{allNA}{A filter function to determine if all elements of a vector are NA.}{allNA}
\aliasA{anyNA}{allNA}{anyNA}
\keyword{manip}{allNA}
\begin{Description}\relax
\code{allNA} evaluates to \code{FALSE} if all elements of its
argument are \code{NA}. \code{anyNA} evaluates to \code{FALSE} if any
of the elements of its argument are \code{NA}.
\end{Description}
\begin{Usage}
\begin{verbatim}
allNA(x)
anyNA(x)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] The vector to test.
\end{ldescription}
\end{Arguments}
\begin{Value}
\code{FALSE} if all elements of \code{x} are \code{NA}.
\end{Value}
\begin{Author}\relax
R. Gentleman
\end{Author}
\begin{SeeAlso}\relax
\code{\LinkA{pOverA}{pOverA}}
\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
  allNA(NA)
  allNA(1)
  anyNA(1)
  anyNA(NA)
\end{ExampleCode}
\end{Examples}