volcano {datasets}R Documentation

Topographic Information on Auckland's Maunga Whau Volcano

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.

Usage

volcano

Format

A matrix with 87 rows and 61 columns, rows corresponding to grid lines running east to west and columns to grid lines running south to north.

Source

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

See Also

filled.contour for a nice plot.

Examples

require(graphics)
filled.contour(volcano, color = terrain.colors, asp = 1)
title(main = "volcano data: filled contour map")

[Package datasets version 2.5.0 Index]