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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-5894) Add PolynomialMapper
Date Sat, 28 Mar 2015 18:15:53 GMT

     [ https://issues.apache.org/jira/browse/SPARK-5894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-5894:
-----------------------------------

    Assignee:     (was: Apache Spark)

> 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
>
> `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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