\Header{args}{Argument List of a Function}
\keyword{documentation}{args}
\begin{Description}\relax
Displays the argument names and corresponding default values of a
function.
\end{Description}
\begin{Usage}
\begin{verbatim}
args(name)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{name}] an interpreted function.
If \code{name} is a character string then the function with that
name is found and used.
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
This function is mainly used interactively.
For programming, use \code{\Link{formals}} instead.
\end{Details}
\begin{Value}
A function with identical formal argument list but an empty body if
given an interpreted function; \code{NULL} in case of a variable or
primitive (non-interpreted) function.
\end{Value}
\begin{References}\relax
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988)
\emph{The New S Language}.
Wadsworth \& Brooks/Cole.
\end{References}
\begin{SeeAlso}\relax
\code{\Link{formals}},
\code{\Link{help}}.
\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
args(c)            # -> NULL (c is a 'primitive' function)
args(graphics::plot.default)
\end{ExampleCode}
\end{Examples}

