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robCompositions (version 1.5.0)

Robust Estimation for Compositional Data.

Description

The package includes methods for imputation of compositional data including robust methods, (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) and (robust) Anderson-Darling normality tests for compositional data as well as popular log-ratio transformations (alr, clr, ilr, and their inverse transformations).

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Version

Install

install.packages('robCompositions')

Monthly Downloads

752

Version

1.5.0

License

GPL-2

Maintainer

Matthias Templ

Last Published

May 6th, 2011

Functions in robCompositions (1.5.0)

coffee

Coffee data
impCoda

Imputation of missing values in compositional data
impKNNa

Imputation of missing values in compositional data using knn methods
ilr

Isometric log-ratio transformation
invalr

Additive logistic transformaton
adtest

Anderson-Darling Normality Tests
invclr

Inverse centred log-ratio transformation
adtestWrapper

Wrapper for Anderson-Darling tests
aDist

Aitchison distance
daFisher

Discriminant analysis by Fisher Rule.
expendituresEU

Mean consumption expenditures data.
plot.imp

Plot method for objects of class imp
skyeLavas

Aphyric skye lavas data
print.outCoDa

print method for outCoDa objects
haplogroups

Haplogroups data.
invilr

Inverse isometric log-ratio transformation
print.imp

Print method for objects of class imp
pfa

Factor analysis for compositional data
phd

PhD Students in the EU
robVariation

Robust variation matrix
impRZalr

alr EM-based Imputation for Rounded Zeros
plot.pcaCoDa

Plot method
adjust

Adjusting for original scale
print.adtestWrapper

print method for objects of class adtestWrapper
robGUI

A lightweighted graphical user interface
machineOperators

Machine operators data set
summary.imp

Summary method for objects of class imp
ternaryDiag

Ternary diagram
plot.outCoDa

plot method for outCoDa objects
outCoDa

Outlier detection for compositional data
arcticLake

Artic lake sediment data
print.daFisher

print method for objects of class daFisher
summary.adtestWrapper

summary method for objects of class adtestWrapper
expenditures

Household expenditures data
print.pcaCoDa

Print method for pcaCoDa objects
alr

Additive log-ratio transformation
constSum

Constant sum
clr

Centred log-ratio transformation
pcaCoDa

Robust principal component analysis for compositional data
impRZilr

EM-based replacement of rounded zeros in compositional data
robCompositions-package

Robust Estimation for Compositional Data.