Performance tuning options for rxDForest/rxDTree

Goal

Options

Performance

xVal              = 0      # (rxDTree) number of cross-validations during fitting

computeOobError   = -1     # (rxDForest) do not compute OOB prediction errors

scheduleOnce      = TRUE   # launch via rxExec (if modest data; best for Hadoop)

                           # Requires nTree = #trees / #tasks

blocksPerRead     = large  # if the input is an XDF file – Warning: reduce this if memory consumption is an issue

verbose           = 0      # minimize console output

reportProgress    = 0      # ditto

useSparseCube     = FALSE  # sparse cube is a bit slower so avoid if possible