Github user WeichenXu123 commented on a diff in the pull request:
https://github.com/apache/spark/pull/14923#discussion_r77361651
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/stat/MultivariateOnlineSummarizer.scala
---
@@ -231,9 +231,9 @@ class MultivariateOnlineSummarizer extends
MultivariateStatisticalSummary with S
*/
@Since("1.1.0")
override def numNonzeros: Vector = {
- require(totalWeightSum > 0, s"Nothing has been added to this
summarizer.")
+ require(totalCnt > 0, s"Nothing has been added to this summarizer.")
- Vectors.dense(weightSum)
+ Vectors.dense(nnz.map(_.asInstanceOf[Double]))
--- End diff --
All right, I update it, thanks!
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