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https://issues.apache.org/jira/browse/SPARK-4111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-4111.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.2.0

Issue resolved by pull request 2978
[https://github.com/apache/spark/pull/2978]

> [MLlib] Implement regression model evaluation metrics
> -----------------------------------------------------
>
>                 Key: SPARK-4111
>                 URL: https://issues.apache.org/jira/browse/SPARK-4111
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>    Affects Versions: 1.2.0
>            Reporter: Yanbo Liang
>            Assignee: Yanbo Liang
>             Fix For: 1.2.0
>
>
> Supervised machine learning include classification and regression. There is 
> classification metrics (BinaryClassificationMetrics) in MLlib, we also need 
> regression metrics to evaluate the regression model and tunning parameter.



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