citrus.foldFeatureSet: computed from first two variables using citrus.calculateFoldFeatureSet function from citrus package
citrus.foldClustering: loaded from citrusClustering.RData file generated by Citrus run
citrus.combinedFCSSet: loaded from citrusClustering.RData file generated by Citrus run
groupsizes: list of sizeso f the groups run in Citrus, in order of the selection for citrus run
meds: The names of the columns from citrus.combinedFCSSet$data of interest to extract medians for
Returns
Returns a list of matrices with columns corresponding to selected features and rows corresponding to sample groups; each list element corresponds to data for a different cluster