Creates an empty Random Forest classifier.
numberOfTrees (Integer):
The number of decision trees to create.
variablesPerSplit (Integer, default: null):
The number of variables per split. If unspecified, uses the square root of the number of variables.
minLeafPopulation (Integer, default: 1):
Only create nodes whose training set contains at least this many points.
bagFraction (Float, default: 0.5):
The fraction of input to bag per tree.
maxNodes (Integer, default: null):
The maximum number of leaf nodes in each tree. If unspecified, defaults to no limit.
seed (Integer, default: 0):
The randomization seed.
