\name{isomLRinv} \alias{isomLRinv} \title{ Inverse isometric log-ratio transformation } \description{ The inverse transformation of \sQuote{isomLR()}. } \usage{ isomLRinv(x.ilr) } \arguments{ \item{x.ilr}{ data frame or matrix } } \details{ For details on the choice of the balances, please, see at the research report for which the link is given below. } \value{ The transformed data. } \references{ Egozcue J.J., V. Pawlowsky-Glahn, G. Mateu-Figueras and C. Barcel'o-Vidal (2003) Isometric logratio transformations for compositional data analysis. \emph{Mathematical Geology}, \bold{35}(3) 279-300 \\ Hron, K. and Templ, M. and Filzmoser, P. (2010) Imputation of missing values for compositional data using classical and robust methods \emph{Computational Statistics and Data Analysis}, vol 54 (12), pages 3095-3107. } \author{ Karel Hron } \seealso{ \code{\link{isomLR}} } \examples{ require(MASS) Sigma <- matrix(c(5.05,4.95,4.95,5.05), ncol=2, byrow=TRUE) set.seed(123) z <- mvrnorm(100, mu=c(0,2), Sigma=Sigma) x <- isomLRinv(z) head(x) } \keyword{ math }