robCompositions (version 2.0.0)

skyeLavas: 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

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)