arcticLake

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).

datasets

Methods for analysis of compositional data
    including robust methods, imputation, methods to replace rounded zeros, (robust) 
    outlier detection for compositional data, (robust) principal component analysis for
    compositional data, (robust) factor analysis for compositional data,
    (robust) discriminant analysis for compositional data (Fisher rule), robust
    regression with compositional predictors and (robust) Anderson-Darling
    normality tests for compositional data as well as popular log-ratio
    transformations (addLR, cenLR, isomLR, and their inverse transformations).
    In addition, visualisation and diagnostic tools are implemented as well as
    high and low-level plot functions for the ternary diagram.

Matthias Templ

robCompositions

Robust Estimation for Compositional Data

arcticLake function

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

arcticLake: Artic lake sediment data

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