\name{dbGetExperimentInfo}
\alias{dbGetExperimentInfo}
\title{List information about an experiment from the database.}
\description{
  \code{dbGetExperimentInfo} lists all experiments that are stored in the maDB database, or returns informations from a particular experiment. Refer to the package vignette for furhter informations or examples (vignette can be opened using the \code{\link{openMadbVignette}} function).
}
\usage{
dbGetExperimentInfo(Con,exp.title)
}
\arguments{
  \item{Con}{The connection to the maDB database (created using the \code{dbConnect} function from the \pkg{RdbiPgSQL} function).}
  \item{exp.title}{The experiment title (name) from the experiment which properties should be listet. If nothing is submitted a list with all experiments that are stored in the database is displayed.}
}
\details{
This function collects information about the specified experiment (database)
by joining several database tables. A table is returned, that contains all
primary keys or foreign keys with wich all data can be accessed for the
particular experiment from the various tables. This tables are:
\describe{
\item{experiments}{Primary information about the experiment}
\item{arrays}{the arrays od GeneChips which where used in the experiment}
\item{signal\_channels}{in two color micro arrays two signal channels exist and therefore two entries in the signal\_channels table reference to one entry in the arrays table. For Affymetrix GeneChips the reference is one to one.}
\item{exp\_values}{this table contains all the expression values from the corresponding signal channels of the experiment. The reference to the signal\_channels table is established by the signal\_channels\_fk column in the exp\_values table.}
\item{samples}{Each entry in this table references to one or more entries in the signal\_channels table. This table contains informations about the samples that were hybridized onto the arrays.}
}
}
%\references{}
\author{Johannes Rainer}

\seealso{
    \code{\link{dbGetAnnotation}}
    \code{\link{publishToDB}}
	\code{\link{dbGetComparisons}}
%    \code{\link{dbConnect}}
    \code{\link{MadbSet-class}}
}

\keyword{data}