wo {geoR} | R Documentation

## Kriging example data from Webster and Oliver

### Description

Data used in Chapter 8, page 156 of Webster and Oliver (2001) to illustrate properties of the kriging predictor.

### Usage

    data(wo)

### Format

An object of the class `geodata` which is a list with the elements:

coords
  coordinates of the data location.
data
  the data vector.
x1
  coordinate of the centrally located prediction point.
x2
  coordinate of the off-centre prediction point.

### Source

Webster, R. and Oliver, M.A. (2001). Geostatistics for Environmental Scientists. Wiley.

### Examples

    data(wo)
    attach(wo)
    par(mfrow=c(1,2))
    plot(c(-10,130), c(-10,130), ty="n", asp=1)
    points(rbind(coords, x1))
    text(coords[,1], 5+coords[,2], format(data))
    text(x1[1]+5, x1[2]+5, "?", col=2)
    plot(c(-10,130), c(-10,130), ty="n", asp=1)
    points(rbind(coords, x2))
    text(coords[,1], 5+coords[,2], format(data))
    text(x2[1]+5, x2[2]+5, "?", col=2)

[Package geoR version 1.5-7 Index]