[GitHub] spark pull request #13403: [SPARK-15660][CORE] Update RDD `variance/stdev` d...

[dongjoon-hyun <gi...@git.apache.org>]

Github user dongjoon-hyun commented on a diff in the pull request:

    https://github.com/apache/spark/pull/13403#discussion_r67567009
  
    --- Diff: core/src/main/scala/org/apache/spark/util/StatCounter.scala ---
    @@ -104,8 +104,11 @@ class StatCounter(values: TraversableOnce[Double]) extends Serializable {
     
       def min: Double = minValue
     
    -  /** Return the variance of the values. */
    -  def variance: Double = {
    +  /** Return the population variance of the values. */
    +  def variance: Double = popVariance
    --- End diff --
    
    Here is the only changed part of legacy code.


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