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https://issues.apache.org/jira/browse/SPARK-12794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sun Rui closed SPARK-12794.
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Resolution: Later
> Support Defining and Registration of R UDF
> ------------------------------------------
>
> Key: SPARK-12794
> URL: https://issues.apache.org/jira/browse/SPARK-12794
> Project: Spark
> Issue Type: Sub-task
> Components: SparkR
> Affects Versions: 1.6.0
> Reporter: Sun Rui
>
> Create UserDefinedRFunction class in Scala similar to
> UserDefinedPythonFunction class.
> Support registering R UDF in UDFRegistration class.
> Implement udf() function in functions.R.
> Implement registerFunction() in SQLContext.R.
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