The number of features to consider for splits at each tree node.
Supported options:
Auto: Choose automatically for task:
If numTrees == 1, set to All
If numTrees > 1 (forest), set to Sqrt for classification and
to OneThird for regression.
All: use all features
OneThird: use 1/3 of the features
Sqrt: use sqrt(number of features)
Log2: use log2(number of features)
Ratio: use (ratio * number of features) features
NumberOfFeatures: use numberOfFeatures features.
(default = Auto)
These various settings are based on the following references:
log2: tested in Breiman (2001)
sqrt: recommended by Breiman manual for random forests
The defaults of sqrt (classification) and onethird (regression) match the R randomForest
package.
The number of features to consider for splits at each tree node. Supported options:
These various settings are based on the following references:
Breiman manual for random forests
Breiman (2001)