\name{volcano}
\title{Topographic Information for the Maunga Whau Volcano}
\usage{data(volcano)}
\alias{volcano}
\format{A matrix with 87 rows and 61 columns.

}
\source{Digitized from a topographic map by Ross Ihaka.
This data should not be regarded as accurate.

}
\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.

}
\references{}
\keyword{datasets}
