R: aphyric skye lavas data

skyeLavas {robCompositions} | R Documentation

## aphyric skye lavas data

### Description

AFM compositions of 23 aphyric Skye lavas. This data set can be found on page 360 of the Aitchison book (see reference).

### Usage

    data(skyeLavas)

### Format

A data frame with 23 observations on the following 3 variables.

### Details

- `sodium-potassium` a numeric vector of percentages of Na2O+K2O

- `iron` a numeric vector of percentages of Fe2O3

- `magnesium` a numeric vector of percentages of MgO

### Author(s)

Matthias Templ matthias.templ@tuwien.ac.at

### References

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

### Examples

    data(skyeLavas)
    str(skyeLavas)
    summary(skyeLavas)
    rowSums(skyeLavas)

[Package robCompositions version 2.1.0 Index]