volcano.sub: Subset of the data frame volcano.df

In STdiag: Functions to Plot a Structure-Time Diagram

Description

This subset is intended to give an exmaple of interpolation, it is a subset of volcano with 13 rows and 17 columns from the original data.

Usage

data(volcano.sub)

Format

A data frame with 1947 observations on the following 3 variables.

x

X axis coordinates.

y

Y axis coordinates.

z

Values of the data set volcano corresponding the the xy coordinates.

Source

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

References

filled.contour for a nice plot.

Examples

data(volcano.sub)
STdiag(data=volcano.sub,color="topo",log=FALSE)
STdiag(data=Interpolation(volcano.sub),color="topo",log=FALSE)

STdiag documentation built on May 2, 2019, 4:58 p.m.