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https://issues.apache.org/jira/browse/SPARK-2776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng closed SPARK-2776.
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Resolution: Duplicate
> Add normalizeByCol method to mllib.util.MLUtils
> -----------------------------------------------
>
> Key: SPARK-2776
> URL: https://issues.apache.org/jira/browse/SPARK-2776
> Project: Spark
> Issue Type: New Feature
> Reporter: Andres Perez
> Priority: Minor
>
> Add the ability to compute the mean and standard deviations of each vector
> (LabeledPoint) component and normalize each vector in the RDD, using only RDD
> transformations. The result is an RDD of Vectors where each column has a mean
> of zero and standard deviation of one.
> See https://github.com/apache/spark/pull/1698
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