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https://issues.apache.org/jira/browse/SPARK-4422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14254081#comment-14254081
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Xiangrui Meng commented on SPARK-4422:
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fromBreeze is private and we don't use breeze vectors in a way that can trigger
this bug. Actually it is not really necessary to backport this patch.
> In some cases, Vectors.fromBreeze get wrong results.
> ----------------------------------------------------
>
> Key: SPARK-4422
> URL: https://issues.apache.org/jira/browse/SPARK-4422
> Project: Spark
> Issue Type: Bug
> Components: MLlib
> Affects Versions: 1.0.2, 1.1.1, 1.2.0
> Reporter: Guoqiang Li
> Assignee: Guoqiang Li
> Priority: Minor
> Labels: backport-needed
> Fix For: 1.2.0
>
>
> {noformat}
> import breeze.linalg.{DenseVector => BDV, DenseMatrix => BDM, sum => brzSum}
> var x = BDM.zeros[Double](10, 10)
> val v = Vectors.fromBreeze(x(::, 0))
> assert(v.size == x.rows)
> {noformat}
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