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From facaiy <>
Subject [GitHub] spark issue #17503: [SPARK-3159][MLlib] Check for reducible DecisionTree
Date Thu, 27 Apr 2017 08:46:42 GMT
Github user facaiy commented on the issue:
    I have the same question with you. I guess that Impurity info is useful to debug and analysis
tree model. However, as tree is grown from root to leaf when training, hence it seems needless
to merge its sons.

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