\name{residuals.pcaRes}
\title{Residuals values from a PCA model.}
\usage{residuals.pcaRes(object, data=completeObs(object), ...)}
\description{This function extracts the residuals values from a pcaRes object
for the PCA methods SVD, Nipals, PPCA and BPCA}
\value{A \code{matrix} with the residuals}
\alias{residuals.pcaRes}
\keyword{multivariate}
\author{Henning Redestig}
\arguments{\item{object}{\code{pcaRes} the \code{pcaRes} object of interest.}
\item{data}{\code{matrix} The data that was used to calculate the
PCA model (or a different dataset to e.g. adress its proximity to
the model).}
\item{...}{Passed on to \code{\link{predict.pcaRes}}. E.g. setting
the number of used components.}}
\examples{data(iris)
pcIr <- pca(iris[,1:4])
head(residuals(pcIr, iris[,1:4]))}