

   TTooppooggrraapphhiicc IInnffoorrmmaattiioonn ffoorr tthhee MMaauunnggaa WWhhaauu VVoollccaannoo

        data(volcano)

   FFoorrmmaatt::

        A matrix with 87 rows and 61 columns.

   DDeessccrriippttiioonn::

        Maunga Whau (Mt Eden) is one of about 50 volcanos in
        the Auckland volcanic field.  This data set gives topo-
        graphic information for Maunga Whau on a 10m by 10m
        grid.

        The data are in the form of a matrix with rows corre-
        sponding to grid lines running east to west and columns
        to grid lines running south to north.

   SSoouurrccee::

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

   RReeffeerreenncceess::

   SSeeee AAllssoo::

        `filled.contour' for a nice plot.

