https://github.com/cran/robCompositions
Tip revision: d43cd20e55d3a1691b396cc30772f2e5a2945e82 authored by Matthias Templ on 29 November 2009, 19:35:41 UTC
version 1.3.2
version 1.3.2
Tip revision: d43cd20
arcticLake.Rd
\name{arcticLake}
\alias{arcticLake}
\docType{data}
\title{ Artic 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 observations on the following 3 variables.
\describe{
\item{\code{sand}}{numeric vector of percentages of sand}
\item{\code{silt}}{numeric vector of percentages of silt}
\item{\code{clay}}{numeric vector of percentages of clay}
}
}
\details{
Please note, that the original data set consists of four variables. However, usually the first three are mainly used in applications.
}
\source{
Aitchison, J. (1986) \emph{The Statistical Analysis of Compositional
Data} Monographs on Statistics and Applied Probability. Chapman \&
Hall Ltd., London (UK). 416p.
}
\examples{
data(arcticLake)
}
\keyword{datasets}