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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2016/04/09 00:48:25 UTC

[jira] [Created] (SPARK-14500) Accept Dataset[_] instead of DataFrame in MLlib APIs

Xiangrui Meng created SPARK-14500:
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             Summary: Accept Dataset[_] instead of DataFrame in MLlib APIs
                 Key: SPARK-14500
                 URL: https://issues.apache.org/jira/browse/SPARK-14500
             Project: Spark
          Issue Type: New Feature
          Components: ML
            Reporter: Xiangrui Meng
            Assignee: Xiangrui Meng


In Spark 2.0, `DataFrame` is an alias of `Dataset[Row]`. MLlib API actually works for other types of `Dataset`, so we should accept `Dataset[_]` instead. It maps to `Dataset<?>` in Java. This is a source compatible change.



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