#candidates (level x) in the Random Forest Learner analysis

Hello All,
can one of you explain me understandably what the #candidates (level x) are in the Random Forest Learner analysis ?

Probably this is very simple, but I just don’t get it…:confused:

Is it possible that this is the number of trees in which an attribute was included at all? If so, isn’t the Random Forest Learner always using all attributes/variables?

Many thanks in advance!


Hi @Jana_Tuerlich. In Random Forest a subset of the attributes is chosen at random. In the Description window, output port you can find the explanation:

#candidates (level x) is the number of times an attribute was in the attribute sample for level x (in a random forest setup these samples differ from node to node)

Hope this helps


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