\name{cor.dist}
\alias{cor.dist}
\alias{cor.dist,matrix-method}
\alias{cor.dist,ExpressionSet-method}
\title{Pearson correlational distance}
\description{
 Calculate pairwise Pearson correlational distances, i.e. 1-COR or 1-|COR|,
 for all columns of a matrix and save as a 'dist' object
}
\usage{
cor.dist(x, \dots)
}
\arguments{
  \item{x}{n by p matrix or ExpressionSet; if x is an ExpressionSet, then the function uses its 'exprs' slot.}
  \item{\dots}{arguments passed to \code{cor.dist}:
  \item{abs}{if TRUE, then 1-|COR| else 1-COR, default is TRUE.}
  \item{diag}{if TRUE, then the diagonal of the distance matrix will be displayed, default is FALSE.}
  \item{upper}{if TRUE, then the upper triangle of the distance matrix will be displayed, default is FALSE.}
  \item{sample}{for ExpressionSet methods: if TRUE, then distances are computed between samples,
  otherwise, they are computed between genes.}
}
}
\details{
The \code{cor} function is used to compute the pairwise distances.
}
\value{
  Pairwise Pearson correlational distance object
}
\author{Beiying Ding} 
\seealso{\code{\link{spearman.dist}}, \code{\link{tau.dist}},\code{\link{euc}},\code{\link{man}},
  \code{\link{KLdist.matrix}},\code{\link{KLD.matrix}},\code{\link{mutualInfo}}}
\examples{
 x <- matrix(rnorm(200), nrow = 5)
 cor.dist(x)
}