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https://issues.apache.org/jira/browse/SPARK-8419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley closed SPARK-8419.
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Resolution: Not A Problem
> Statistics.colStats could avoid an extra count()
> ------------------------------------------------
>
> Key: SPARK-8419
> URL: https://issues.apache.org/jira/browse/SPARK-8419
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Joseph K. Bradley
> Priority: Trivial
> Labels: starter
>
> Statistics.colStats goes through RowMatrix to compute the stats. But
> RowMatrix.computeColumnSummaryStatistics does an extra count() which could be
> avoided. Not going through RowMatrix would skip this extra pass over the
> data.
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