R: Arctic Lake Data (Aitchison)

ArcticLake {DirichletReg} | R Documentation

## Arctic Lake Data (Aitchison)

### Description

These data are taken from Aitchison (2003) and contain information on the relation of sediment composition with depth in an Arctic lake.

### Usage

    ArcticLake

### Format

A data frame with 39 observations on the following 4 variables:

`sand`, `silt`, `clay`

  relative frequencies of sand, silt, and clay

`depth`

  water depth in meters

### Source

Aitchison, J. (2003). The Statistical Analysis of Compositional Data. The Blackburn Press, Caldwell, NJ.

### Examples

    head(ArcticLake)
    AL <- DR_data(ArcticLake[,1:3])
    plot(AL)
    summary(AL)

[Package DirichletReg version 0.7-0 Index]