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https://issues.apache.org/jira/browse/SPARK-5895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-5895.
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Resolution: Fixed
Fix Version/s: 1.5.0
Issue resolved by pull request 7972
[https://github.com/apache/spark/pull/7972]
> Add VectorSlicer
> ----------------
>
> Key: SPARK-5895
> URL: https://issues.apache.org/jira/browse/SPARK-5895
> Project: Spark
> Issue Type: Sub-task
> Components: ML
> Reporter: Xiangrui Meng
> Assignee: Xusen Yin
> Fix For: 1.5.0
>
>
> `VectorSlicer` takes a vector column and output a vector column with a subset
> of features.
> {code}
> val vs = new VectorSlicer()
> .setInputCol("user")
> .setSelectedFeatures("age", "salary")
> .setOutputCol("usefulUserFeatures")
> {code}
> We should allow specifying selected features by indices and by names. It
> should preserve the output names.
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