\include{zinput} \begin{document}\section{{\tt current.packages}: Find all packages in a dependency chain}\label{ss:current.packages}
\keyword{file}{current.packages}
\begin{Description}\relax
Use \code{current.packages} to find all the packages suggested or 
required by a given package, and the currently installed version number 
for each.
\end{Description}
\begin{Usage}
\begin{verbatim}
current.packages(package)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{package}] a character string corresponding to the name of an 
installed package
\end{ldescription}
\end{Arguments}
\begin{Value}
A matrix containing the current version number of the packages 
suggested or required by \code{package}.
\end{Value}
\begin{Author}\relax
Olivia Lau <\email{olau@fas.harvard.edu}>
\end{Author}
\begin{SeeAlso}\relax
\code{packageDescription}
\end{SeeAlso}
\begin{Examples}
\begin{ExampleCode}
## Not run: 
current.packages("Zelig")
## End(Not run)\end{ExampleCode}
\end{Examples}

\end{document}
