\name{isRepetitive}
\alias{isRepetitive}
\title{ betr package: internal function }
\description{ 
An internal function used to determine when the iterative model fitting process has converged.    
}
\arguments{
  \item{x}{ a list of numeric vectors }
}
\details{
  This function takes a list of numeric vectors and returns TRUE if two of the vectors are the same.
}
\value{
  a boolean
}
\author{Martin Aryee}
\seealso{\code{\link{betr}}}