Compositional Data Analysis


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Documentation for package ‘Compositional’ version 3.1

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Compositional-package Compositional Data Analysis
a.est Estimation of the value of alpha in the folded model
a.mle MLE of the folded model for a given value of alpha
alef The alpha-transformation
alfa The alpha-transformation
alfa.knn The k-NN algorithm for compositional data
alfa.pcr Multivariate or univariate regression with compositional data in the covariates side using the alpha-transformation
alfa.profile Estimation of the value of alpha via the alfa profile log-likelihood
alfa.rda Regularised discriminant analysis for compositional data using the alpha-transformation
alfa.reg Regression with compositional data using the alpha-transformation
alfa.ridge Ridge regression with compositional data in the covariates side using the alpha-transformation
alfa.tune Fast estimation of the value of alpha
alfadist The alpha-distance
alfadista The alpha-distance
alfainv Inverse of the alpha-transformation
alfaknn.tune Tuning of the he k-NN algorithm for compositional data
alfapcr.tune Tuning the number of PCs in the PCR with compositional data using the alpha-transformation
alfarda.tune Cross validation for the regularised discriminant analysis with compositional data using the alpha-transformation
alfareg.tune Tuning the value of alpha in the alpha-regression
alfaridge.plot Ridge regression plot
alfaridge.tune Cross validation for the ridge regression with compositional data as predictor using the alpha-transformation
alpha.mle MLE of the folded model for a given value of alpha
alr The additive log-ratio transformation and its inverse
alrinv The additive log-ratio transformation and its inverse
bic.mixcompnorm Mixture model selection via BIC
bivt.contour Contour plot of the t distribution in S^2
comp.den Estimating location and scatter parameters for compositional data
comp.kerncontour Contour plot of the kernel density estimate in S^2
comp.knn The k-NN algorithm for compositional data
comp.reg Multivariate regression with compositional data
comp.test Hypothesis testing for two or more compositional mean vectors
compknn.tune Tuning of the he k-NN algorithm for compositional data
ddiri Density values of a Dirichlet distribution
diri.contour Contour plot of a Dirichlet distribution in S^2
diri.est Fitting a Dirichlet distribution
diri.nr Fitting a Dirichlet distribution via Newton-Rapshon
diri.reg Dirichlet regression
diri.reg2 Dirichlet regression
dirimean.test Log-likelihood ratio test for a Dirichlet mean vector
eel.test1 Exponential empirical likelihood for a one sample mean vector hypothesis testing
eel.test2 Exponential empirical likelihood hypothesis testing for two mean vectors
el.test1 Empirical likelihood for a one sample mean vector hypothesis testing
el.test2 Empirical likelihood hypothesis testing for two mean vectors
frechet The Frechet mean for compositional data
glm.pcr Principal component generalised linear models
glmpcr.tune Tuning the principal components with GLMs
helm The Helmert sub-matrix
hotel1T2 Hotelling's multivariate version of the 1 sample t-test for Euclidean data
hotel2T2 Hotelling's multivariate version of the 2 sample t-test for Euclidean data
james James multivariate version of the t-test
js.compreg Divergence based regression for compositional data
kl.compreg Divergence based regression for compositional data
kl.compreg2 Helper functions for the Kullback-Leibler regression
kl.diri Kullback-Leibler divergence and Bhattacharyya distance between two Dirichlet distributions
klcompreg.boot Helper functions for the Kullback-Leibler regression
maov Multivariate analysis of variance
maovjames Multivariate analysis of variance (James test)
mix.compnorm Gaussian mixture models for compositional data
mixnorm.contour Contour plot of a Gaussian mixture model in S^2
mixreg Zero adjusted Dirichlet regression
mkde Multivariate kernel density estimation
mkde.tune Tuning of the bandwidth h of the kernel using the maximum likelihood cross validation
multinompcr.tune Tuning the principal components with GLMs
multivreg Multivariate linear regression
multivt MLE for the multivarite t distribution
norm.contour Contour plot of the normal distribution in S^2
ols.compreg Non linear least squares regression for compositional data
pcr Principal components regression
pcr.tune Tuning of the principal components regression
rcompnorm Multivariate normal random values simulation on the simplex
rcompsn Multivariate skew normal random values simulation on the simplex
rcompt Multivariate t random values simulation on the simplex
rda Regularised discriminant analysis for Euclidean data
rda.tune Tuning the parameters of the regularised discriminant analysis
rdiri Dirichlet random values simulation
rfolded Simulation of compositional data from the folded model
ridge.plot Ridge regression plot
ridge.reg Ridge regression
ridge.tune Cross validation for the ridge regression
rmixcomp Simulation of compositional data from Gaussian mixture models
skewnorm.contour Contour plot of the skew skew-normal distribution in S^2
spatmed.reg Spatial median regression
sscov Spatial sign covariance matrix
sym.test Log-likelihood ratio test for a symmetric Dirichlet distribution
ternary Ternary diagram
totvar Total variability
zadr Zero adjusted Dirichlet regression