robCompositions (version 2.0.0)

arcticLake: Arctic lake sediment data

Description

Sand, silt, clay compositions of 39 sediment samples at different water depths in an Arctic lake. This data set can be found on page 359 of the Aitchison book (see reference).

Usage

data(arcticLake)

Format

A data frame with 39 rows and 3 variables

Details

• sand numeric vector of percentages of sand
• silt numeric vector of percentages of silt
• clay numeric vector of percentages of clay

The rows sum up to 100, except for rounding errors.

References

Aitchison, J. (1986). The Statistical Analysis of Compositional Data. Monographs on Statistics and Applied Probability. Chapman \& Hall Ltd., London (UK). 416p.

Examples

data(arcticLake)
str(arcticLake)
summary(arcticLake)
rowSums(arcticLake)
ternaryDiag(arcticLake)
plot(isomLR(arcticLake))