\name{listSubjects}
\alias{listSubjects}
\title{
 Returns a vector of subjects for which there are monitor records in the
 StatShop database.
}
\usage{ 
listSubjects(model)
listSubjects()
}

\arguments{
  \item{model}{Name of model to select.  If left blank, uses the
    statistics table.}
}
\description{
    Returns a vector of strings giving the UIDs for subjects appearing
    the in the database, that is, those students who were monitored.

    A connection to the database must be open before this function can
    be run.
}
\seealso{
  \code{\link{asp.dbConnect}}, 
  \code{\link{listModels}}, \code{\link{listVariables}},
  \code{\link{getVariable}}
}
\examples{
### This example will only run if you have the StatShop test databases
### installed on your machine.
StatShop <- Sys.getenv("STATSHOP")
if (StatShop == "") {
  warn("StatShop not installed, skipping test.")
} else {
  asp.dbConnect("mcmc_statistics_test","junit")
  listSubjects()
  asp.dbDisconnect()
}
}
\keyword{database}