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From mengxr <...@git.apache.org>
Subject [GitHub] spark pull request: [SPARK-3158][MLLIB]Avoid 1 extra aggregation f...
Date Thu, 09 Oct 2014 05:49:00 GMT
Github user mengxr commented on a diff in the pull request:

    https://github.com/apache/spark/pull/2708#discussion_r18627682
  
    --- Diff: mllib/src/main/scala/org/apache/spark/mllib/tree/DecisionTree.scala ---
    @@ -532,6 +532,14 @@ object DecisionTree extends Serializable with Logging {
           Some(mutableNodeToFeatures.toMap)
         }
     
    +    // array of nodes to train indexed by node index in group
    +    val nodes = Array.fill[Node](numNodes)(null)
    --- End diff --
    
    `val nodes = new Array[Node](numNodes)`


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