anchor.diff:      "crmn" # requires pcaMethods, and Biobase
       "imputeLCMD" # requires pcaMethods, and impute
       "MEET" # requires pcaMethods, and seqLogo
  -    #"SigTree" # requires phyloseq
       "saps" # requires piano, and survcomp
       "smart" # requires PMA
       "surveillance" # requires polyCub
  
positive.code:     "PKgraph" # requires rggobi
      "SeqGrapheR" # requires rggobi
      "branchLars" # requires Rgraphviz
      #"gcExplorer" # requires Rgraphviz
      "hasseDiagram" # requires Rgraphviz
      "hpoPlot" # requires Rgraphviz
      "strum" # requires Rgraphviz
  
negative.code:     "gRapHD" # requires graph
      "msSurv" # requires graph
      "PairViz" # requires graph
      "iRefR" # requires graph, and RBGL
      "pcalg" # requires graph, and RBGL
      "protiq" # requires graph, and RBGL
  