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https://issues.apache.org/jira/browse/SPARK-17363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-17363.
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Resolution: Fixed
Resolved by https://github.com/apache/spark/pull/14923
> fix MultivariantOnlineSummerizer.numNonZeros
> --------------------------------------------
>
> Key: SPARK-17363
> URL: https://issues.apache.org/jira/browse/SPARK-17363
> Project: Spark
> Issue Type: Bug
> Components: ML, MLlib
> Affects Versions: 2.1.0
> Reporter: Weichen Xu
> Assignee: Weichen Xu
> Priority: Minor
> Fix For: 2.1.0
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> The MultivariantOnlineSummerizer.numNonZeros method is wrong.
> it should return the nnz array, not weightSum array.
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