addTrees: Add Trees
In jatherrien/largeRCRF: Large Random Competing Risks Forests

Add more trees to an existing forest. Most parameters are extracted from the previous forest.

addTrees(forest, numTreesToAdd, savePath = NULL,
  savePath.overwrite = c("warn", "delete", "merge"),
  forest.output = c("online", "offline"), cores = getCores(),
  displayProgress = TRUE)

`forest`	An existing forest.
`numTreesToAdd`	The number of trees to add.
`savePath`	If saving the forest, the directory to save to. Default is `NULL`. Note that you need to re-specify the path if you're modifying a previously saved forest.
`savePath.overwrite`	If `savePath` is pointing to an existing directory, possibly containing another forest, this specifies what should be done.
`forest.output`	This parameter only applies if `savePath` has been set; set to 'online' (default) and the saved forest will be loaded into memory after being trained. Set to 'offline' and the forest is not saved into memory, but can still be used in a memory unintensive manner.
`cores`	The number of cores to be used for training the new trees.
`displayProgress`	A logical indicating whether the progress should be displayed to console; default is `TRUE`. Useful to set to FALSE in some automated situations.