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compositions (version 2.0-8)

jura: The jura dataset

Description

A geochemical dataset from the Swiss Jura.

Usage

data(juraset)
data(jura259)

Arguments

Format

A 359x11 or 259x11 dataframe

Details

The JURA data set provided by J.-P. Dubois, IATE-Paedologie, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland. Spatial coordinates and values of categorial and continuous attributes at the 359 sampled sites. The 100 test locartions are denoted with a star. Rock Types: 1: Argovian, 2: Kimmeridgian, 3: Sequanian, 4: Portlandian, 5: Quaternary. Land uses: 1: Forest, 2: Pasture, 3: Meadow , 4: Tillage

XX location coordinate
YY location coordinate
RockCategorical: rocktype,
LandCategorical: land usage
Cdelement amount,
Cuelement amount,
Pbelement amount,
Coelement amount,
Crelement amount,
Nielement amount,

All 3-part compositions sum to one.

References

Atteia, O., Dubois, J.-P., Webster, R., 1994, Geostatistical analysis of soil contamination in the Swiss Jura: Environmental Pollution 86, 315-327

Webster, R., Atteia, O., Dubois, J.-P., 1994, Coregionalization of trace metals in the soil in the Swiss Jura: European Journal of Soil Science 45, 205-218

Examples

Run this code
if (FALSE) {
data(juraset)
X <- with(juraset,cbind(X,Y))
comp <- acomp(juraset,c("Cd","Cu","Pb","Co","Cr"))
lrv <- logratioVariogram(comp,X,maxdist=1,nbins=10)
plot(lrv)
}

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