\Header{NotYet}{Not Yet Implemented Functions and Unused Arguments}
\alias{.NotYetImplemented}{NotYet}
\alias{.NotYetUsed}{NotYet}
\alias{NotYetImplemented}{NotYet}
\alias{NotYetUsed}{NotYet}
\keyword{documentation}{NotYet}
\keyword{utilities}{NotYet}
\begin{Description}\relax
In order to pinpoint missing functionality, the \R{} core team uses
these functions for missing \R{} functions and not yet used arguments of
existing \R{} functions (which are typically there for compatibility
purposes).

You are very welcome to contribute your code \dots\end{Description}
\begin{Usage}
\begin{verbatim}
.NotYetImplemented()
.NotYetUsed(arg, error = TRUE)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{arg}] an argument of a function that is not yet used.
\item[\code{error}] a logical.  If \code{TRUE}, an error is signalled; if
\code{FALSE}; only a warning is given.
\end{ldescription}
\end{Arguments}
\begin{SeeAlso}\relax
the contrary, \code{\Link{Deprecated}} and
\code{\Link{Defunct}} for outdated code.\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
plot.mlm         # to see how the ``NotYetImplemented''
                 # reference is made automagically
try(plot.mlm())

barplot(1:5, inside = TRUE) # `inside' is not yet used
\end{ExampleCode}
\end{Examples}

