\name{getGeneSets}
\alias{getGeneSets}
\title{Prepare Pathway Data for the MLP Function}
\usage{
  getGeneSets(species = "Mouse", geneSetSource = NULL,
    entrezIdentifiers)
}
\arguments{
  \item{species}{character vector of length one indicating
  the species, one of 'Mouse', 'Human' or 'Rat'; defaults
  to 'Mouse'.}

  \item{geneSetSource}{source to be used to construct the
  list of pathway categories; for public data sources, the
  user can specify a string (one of 'GOBP', 'GOMF', 'GOCC',
  'KEGG' or 'REACTOME') and BioC packages will be used to
  construct the list of pathway categories; for non-public
  data sources, the user can pass the pathway data as a
  dataframe with (at least) the following four columns:
  PATHWAYID, TAXID, PATHWAYNAME and GENEID. It is assumed
  all columns are of type character.}

  \item{entrezIdentifiers}{Entrez Gene identifiers used to
  subset the relevant gene set}
}
\value{
  object of class geneSetMLP which is essentially a named
  list of pathway categories. Each list component contains
  a vector of Entrez Gene identifiers related to that
  particular pathway
}
\description{
  The return value of the getGeneSets function has as
  primary use to serve as geneSet argument for the MLP
  function
}
\examples{
if (require(GO.db) && require(org.Mm.eg.db)){
  pathExampleData <- system.file("exampleFiles", "expressionSetGcrma.rda", package = "MLP")
  pathExamplePValues <- system.file("exampleFiles", "examplePValues.rda", package = "MLP")
  load(pathExampleData)
  load(pathExamplePValues)
  geneSet <- getGeneSets(species = "Mouse", geneSetSource = "GOBP", entrezIdentifiers = names(examplePValues)[1:2000])
  head(geneSet)
}
}