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The regression value of a regressive tree.

Inherits From: AbstractValue

Can also be used in gradient-boosted-trees for classification and ranking.

value Value of the tree. The semantic depends on the tree: For Random Forests, this value is a regressive value (in the same unit as the label). For classification and ranking GBDTs, this value is a loggit.
standard_deviation Optional standard deviation attached to the value.
num_examples Number of example in the node.



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Return self==value.