[jira] [Created] (IGNITE-12274) [ML] DecisionTree works incorrectly if maxDeep > amount of features

[Anton Vinogradov (Jira)]

Alexey Zinoviev created IGNITE-12274:
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             Summary: [ML] DecisionTree works incorrectly if maxDeep > amount of features
                 Key: IGNITE-12274
                 URL: https://issues.apache.org/jira/browse/IGNITE-12274
             Project: Ignite
          Issue Type: Bug
          Components: ml
    Affects Versions: 2.9
            Reporter: Alexey Zinoviev
            Assignee: Alexey Zinoviev
             Fix For: 2.9


We have a problem in two places: 

null nodes could be created here *MeanDecisionTreeLeafBuilder.createLeafNode* method in the row *return aa != null ? new DecisionTreeLeafNode(aa[0]) : null;*

Probably, this situation is arising then the amount of features is smaller than maxDeep



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