copper {SemiPar}

Copper data

Description

The copper data frame has 442 sets of observations from a simulation based on a stockpile of mined material in the former Soviet Union. Boreholes have been drilled into the dump. The drill core is cut every 5 metres and assayed for copper and cobalt content in percentage by weight.

Usage

data(copper)

Format

This data frame contains the following columns:

sample.num

sample number.

id

sample identification number.

zone

zone code.

xcoord

x co-ordinate.

ycoord

y co-ordinate.

zcoord

z co-ordinate.

grade

grade measurement.

core.length

percentage of copper.

Source

Clark, I. and Harper, W.V. (2000). Practical Geostatistics 2000. Columbus, Ohio: Ecosse North America Llc.

Examples

library(SemiPar)
data(copper)
pairs(copper[,4:7])