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https://issues.apache.org/jira/browse/SPARK-5894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-5894.
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Resolution: Fixed
Fix Version/s: 1.4.0
Issue resolved by pull request 5245
[https://github.com/apache/spark/pull/5245]
> Add PolynomialMapper
> --------------------
>
> Key: SPARK-5894
> URL: https://issues.apache.org/jira/browse/SPARK-5894
> Project: Spark
> Issue Type: Sub-task
> Components: ML
> Reporter: Xiangrui Meng
> Assignee: Xusen Yin
> Fix For: 1.4.0
>
>
> `PolynomialMapper` takes a vector column and outputs a vector column with
> polynomial feature mapping.
> {code}
> val poly = new PolynomialMapper()
> .setInputCol("features")
> .setDegree(2)
> .setOutputCols("polyFeatures")
> {code}
> It should handle the output feature names properly. Maybe we can make a
> better name for it instead of calling it `PolynomialMapper`.
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