\Header{volcano}{Topographic Information for the Maunga Whau Volcano}
\keyword{datasets}{volcano}
\begin{Usage}
\begin{verbatim}data(volcano)\end{verbatim}
\end{Usage}
\begin{Format}
A matrix with 87 rows and 61 columns.\end{Format}
\begin{Description}
Maunga Whau (Mt Eden) is one of about 50 volcanos in the Auckland
volcanic field.  This data set gives topographic information for
Maunga Whau on a 10m by 10m grid.

The data are in the form of a matrix with rows corresponding to
grid lines running east to west and columns to grid lines running
south to north.\end{Description}
\begin{Source}
Digitized from a topographic map by Ross Ihaka.
This data should not be regarded as accurate.\end{Source}
\begin{References}
\end{References}
\begin{SeeAlso}
\texttt{\Link{filled.contour}} for a nice plot.\end{SeeAlso}

