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robCompositions (version 1.6.2)

Robust Estimation for Compositional Data.

Description

The package includes methods for imputation of compositional data including robust methods, methods to impute 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 (alr, clr, ilr, 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.

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Version

Install

install.packages('robCompositions')

Monthly Downloads

752

Version

1.6.2

License

GPL-2

Maintainer

Matthias Templ

Last Published

January 11th, 2013

Functions in robCompositions (1.6.2)

coffee

Coffee data
expendituresEU

Mean consumption expenditures data.
constSum

Constant sum
addLRinv

Additive logistic transformaton
arcticLake

Artic lake sediment data
adtestWrapper

Wrapper for Anderson-Darling tests
cenLR

Centred log-ratio transformation
impRZalr

alr EM-based Imputation for Rounded Zeros
ternaryDiagPoints

Add points or lines to a given ternary diagram.
alr

Additive log-ratio transformation
invclr

Inverse centred log-ratio transformation
print.daFisher

print method for objects of class daFisher
isomLR

Isometric log-ratio transformation
expenditures

Household expenditures data
cenLRinv

Inverse centred log-ratio transformation
impRZilr

EM-based replacement of rounded zeros in compositional data
plot.imp

Plot method for objects of class imp
pcaCoDa

Robust principal component analysis for compositional data
plot.outCoDa

plot method for outCoDa objects
outCoDa

Outlier detection for compositional data
isomLRinv

Inverse isometric log-ratio transformation
addLR

Additive log-ratio transformation
invilr

Inverse isometric log-ratio transformation
missPatterns

missing or zero pattern structure.
ilr

Isometric log-ratio transformation
summary.adtestWrapper

summary method for objects of class adtestWrapper
print.adtestWrapper

print method for objects of class adtestWrapper
print.pcaCoDa

Print method for pcaCoDa objects
robVariation

Robust variation matrix
orthbasis

Orthonormal basis
pfa

Factor analysis for compositional data
print.outCoDa

print method for outCoDa objects
lmCoDaX

Classical and robust regression of non-compositional response on compositional predictors
phd

PhD Students in the EU
gm

geometric mean
skyeLavas

Aphyric skye lavas data
daFisher

Discriminant analysis by Fisher Rule.
robCompositions-package

Robust Estimation for Compositional Data.
print.imp

Print method for objects of class imp
aDist

Aitchison distance
haplogroups

Haplogroups data.
ternaryDiag

Ternary diagram
ternaryDiagEllipse

Adds tolerance ellipses to a ternary diagram.
adtest

Anderson-Darling Normality Tests
impCoda

Imputation of missing values in compositional data
summary.imp

Summary method for objects of class imp
clr

Centred log-ratio transformation
invalr

Additive logistic transformaton
impKNNa

Imputation of missing values in compositional data using knn methods
machineOperators

Machine operators data set
ternaryDiagAbline

Adds a line to a ternary diagram.
adjust

Adjusting for original scale
plot.pcaCoDa

Plot method
robGUI

A lightweighted graphical user interface