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https://issues.apache.org/jira/browse/SPARK-31492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhengruifeng resolved SPARK-31492.
----------------------------------
Fix Version/s: 3.1.0
Resolution: Fixed
Issue resolved by pull request 28268
[https://github.com/apache/spark/pull/28268]
> flatten the result dataframe of FValueTest
> ------------------------------------------
>
> Key: SPARK-31492
> URL: https://issues.apache.org/jira/browse/SPARK-31492
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 3.1.0
> Reporter: zhengruifeng
> Assignee: zhengruifeng
> Priority: Minor
> Fix For: 3.1.0
>
>
> add a new method
> {code:java}
> @Since("3.1.0")
> def test(
> dataset: DataFrame,
> featuresCol: String,
> labelCol: String,
> flatten: Boolean): DataFrame {code}
>
> Similar to new {{test}} method in {{ChiSquareTest}}, it will:
> 1, support df operation on the returned df;
> 2, make driver no longer a bottleneck when dim is high
>
>
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