\name{pairwiseGseaPlot}
\alias{pairwiseGseaPlot}
\title{
Produce a plot for pairwise GSEA result on one gene set
}
\description{
This function plots results of the GSEA analyses on one gene set for
two phenotypes in parallel .
}
\usage{
pairwiseGseaPlot(gl1, gl2, geneSet, exponent=1, output="png", filepath,
filename, ...)
}
\arguments{
  \item{gl1}{
a named numeric or integer vector where names are gene identifiers of
the same type as the ones in the gene set collection, and values are the
measurements on phenotype one corresponding to those genes. This vector
MUST be ordered
}
  \item{gl2}{
a named numeric or integer vector where names are gene identifiers of
the same type as the ones in the gene set collection, and values are the
measurements on phenotype two corresponding to those genes. This vector 
MUST be ordered
}
  \item{geneSet}{
a character vector specifying a gene set (no names, just a vector of
characters corresponding to the IDs)
}
  \item{exponent}{
a single numeric or integer value (set as 1 by default) specifying the
exponent of the GSEA method. 
}
  \item{output}{
a single character value specifying the format of output figure: "pdf" or
"png"
}
  \item{filepath}{
a single character value specifying the directory where these plots will
be stored
}
  \item{filename}{
a single character value specifying the name of the gene set for which
the plot is produced
}
  \item{...}{
other arguments of the function \code{pdf} or \code{png}
}
}
\details{
The plots are going to be produced and stored in the directory 'filepath'
with the name 'filename'.
}

\references{
Subramanian, A., Tamayo, P., Mootha, V. K., Mukherjee, S., Ebert, B. L.,
Gillette, M. A., Paulovich, A., Pomeroy, S. L., Golub, T. R., Lander,
E. S. & Mesirov, J. P. (2005)  \emph{Gene set enrichment analysis: A
knowledge-based approach for interpreting genome-wide expression profiles.}
Proc. Natl. Acad. Sci. USA 102, 15545-15550.
}
\author{
Camille Terfve, Xin Wang
}
\seealso{
\code{\link[HTSanalyzeR:pairwiseGsea]{pairwiseGsea}}, \code{\link[HTSanalyzeR:pairwisePhenoMannWhit]{pairwisePhenoMannWhit}}
}
\examples{
\dontrun{
gl1 <- runif(100, min=-5, max=5)
gl1 <- gl1[order(gl1, decreasing=TRUE)]
gl2 <- runif(100, min=-5, max=5)
gl2 <- gl2[order(gl2, decreasing=TRUE)]
names(gl1) <- as.character(sample(x=seq(from=1, to=100, by=1), size=100,
replace=FALSE))
names(gl2) <- names(gl1)
gs1 <- sample(names(gl1), size=20, replace=FALSE)
gs2 <- sample(names(gl1), size=20, replace=FALSE)
gsc <- list(subset1=gs1, subset2=gs2)
pairwiseGseaPlot(gl1=gl1, gl2=gl2, geneSet=gsc[["subset1"]], filepath=".",
filename="geneSet.pdf", output="pdf", width=8, height=6)
}
}