% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/pRRophetic.R
\name{doVariableSelection}
\alias{doVariableSelection}
\title{a function to do variable selection on expression matrices.}
\usage{
doVariableSelection(exprMat, removeLowVaryingGenes)
}
\arguments{
\item{exprMat}{a matrix of expression levels, rows contain genes and columns contain samples.}

\item{removeLowVaryingGenes}{the proportion of low varying genes to be removed.}
}
\value{
a vector of row ids to keep
}
\description{
This funtino will I.e. remove genes with low variation
It returns a vector of row ids to keep. Note, rownames() must be specified.
}
\author{
Paul Geeleher, Nancy Cox, R. Stephanie Huang
}
\keyword{internal}