\HeaderA{isUnique}{Determine Unique Elements}{isUnique}
\keyword{logic}{isUnique}
\keyword{manip}{isUnique}
\begin{Description}\relax
Determines which elements of a vector occur exactly once.
\end{Description}
\begin{Usage}
\begin{verbatim}
isUnique(x)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] a vector
\end{ldescription}
\end{Arguments}
\begin{Value}
A logical vector of the same length as \code{x}, in which
\code{TRUE} indicates uniqueness.
\end{Value}
\begin{Author}\relax
Wolfgang Huber
\end{Author}
\begin{SeeAlso}\relax
\code{\LinkA{unique}{unique}},\code{\LinkA{duplicated}{duplicated}}.
\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
x <- c(9:20, 1:5, 3:7, 0:8)
isUnique(x)
\end{ExampleCode}
\end{Examples}

