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https://issues.apache.org/jira/browse/SPARK-1696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13998127#comment-13998127
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Xiangrui Meng commented on SPARK-1696:
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Thanks! I sent a PR: https://github.com/apache/spark/pull/778
> RowMatrix.dspr is not using parameter alpha for DenseVector
> -----------------------------------------------------------
>
> Key: SPARK-1696
> URL: https://issues.apache.org/jira/browse/SPARK-1696
> Project: Spark
> Issue Type: Bug
> Components: MLlib
> Reporter: Anish Patel
> Assignee: Xiangrui Meng
> Priority: Minor
>
> In the master branch, method dspr of RowMatrix takes parameter alpha, but
> does not use it when given a DenseVector.
> This probably slid by because when method computeGramianMatrix calls dspr, it
> provides an alpha value of 1.0.
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