wo {geoR}

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

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)