meuse.blocks {constrainedKriging}

Meuse block

Description

meuse.blocks is an object of the class “SpatialPolygonsDataFrame” that contains the coordinates of 259 artificially defined (mostly square) blocks obtained by intersecting a grid with 150 m mesh width over the the flood plain area of the river Meuse, near the village Stein. The 259 x 2 data frame contains the covariate dist and the attribute M (spatial variance of sqrt(dist)) for each block.

Usage

data(meuse.blocks)

Format

The object contains the following slots:

data

a 259 x 2 data frame contains:

dist

mean Euclidean distance of the blocks from the river, normalized to the interval [0;1].

M

the (spatial) variance of sqrt(dist) within the blocks, see Hofer & Papritz (2011).

polygons

an object of the class SpatialPolygons that contains the coordinates of the 259 blocks, see SpatialPolygons.

plotOrder

see SpatialPolygons.

bbox

see SpatialPolygons.

proj4string

see SpatialPolygons.

Author(s)

Christoph Hofer, [e-mail]

References

Hofer, C. and Papritz, A. (2011). constrainedKriging: an R-package for customary, constrained and covariance-matching constrained point or block Kriging. Computers & Geosciences. 37, 1562–1569, doi:10.1016/j.cageo.2011.02.009.

See Also

preCKrige and CKrige

Examples

data(meuse.blocks)
summary(meuse.blocks)
### show the shape of the 259 blocks
plot(meuse.blocks)
### plot maps of the covariate dist and attribute M
spplot(meuse.blocks)