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https://issues.apache.org/jira/browse/SPARK-7422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14541450#comment-14541450
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Apache Spark commented on SPARK-7422:
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User 'GeorgeDittmar' has created a pull request for this issue:
https://github.com/apache/spark/pull/6112
> Add argmax to Vector, SparseVector
> ----------------------------------
>
> Key: SPARK-7422
> URL: https://issues.apache.org/jira/browse/SPARK-7422
> Project: Spark
> Issue Type: New Feature
> Components: MLlib
> Reporter: Joseph K. Bradley
> Priority: Minor
> Labels: starter
>
> DenseVector has an argmax method which is currently private to Spark. It
> would be nice to add that method to Vector and SparseVector. Adding it to
> SparseVector would require being careful about handling the inactive elements
> correctly and efficiently.
> We should make argmax public and add unit tests.
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