Revision 2ad963b97009de7f1bf46c5da8604388c2c67d05 authored by Matthias Templ on 27 February 2013, 09:44:32 UTC, committed by cran-robot on 27 February 2013, 09:44:32 UTC
1 parent 823295f
impAll.Rd
\name{impAll}
\alias{impAll}
%- Also NEED an '\alias' for EACH other topic documented here.
\title{
Replacement of rounded zeros and missing values.
}
\description{
Parametric replacement of rounded zeros and missing values for compositional data using
classical and robust methods based on ilr-transformations with special choice of balances.
Values under detection limit should be saved with the negative value of the detection limit (per variable). Missing values should be coded as NA.
}
\usage{
impAll(x)
}
\arguments{
\item{x}{
data frame
}
}
\details{
This is a wrapper function that calls \emph{impRZilr()} for the replacement of zeros and \emph{impCoda} for the imputation of missing values sequentially.
The detection limit is automatically derived form negative numbers in the data set.
}
\value{
The imputed data set.
}
\references{
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.
Martin-Fernandez, J.A. and Hron, K. and Templ, M. and Filzmoser, P. and Palarea-Albaladejo, J. (2012)
Model-based replacement of rounded zeros in compositional data: Classical and robust approaches,
\emph{Computational Statistics}, 56 (2012), S. 2688 - 2704.
}
\author{
Jiri Eichler
}
\note{
This function is mainly used by the compositionsGUI.
}
\seealso{
\code{\link{impCoda}}, \code{\link{impRZilr}}
}
\examples{
## see the compositionsGUI
}
\keyword{ manip }
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