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https://issues.apache.org/jira/browse/SPARK-11912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15021428#comment-15021428
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Apache Spark commented on SPARK-11912:
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User 'yanboliang' has created a pull request for this issue:
https://github.com/apache/spark/pull/9897
> ml.feature.PCA minor refactor
> -----------------------------
>
> Key: SPARK-11912
> URL: https://issues.apache.org/jira/browse/SPARK-11912
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Yanbo Liang
> Priority: Minor
>
> Like SPARK-11852, k is params and we should save it under metadata/ rather
> than both under data/ and metadata/. We construct mllib.feature.PCAModel
> inside transform.
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