Joseph K. Bradley created SPARK-13785:
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             Summary: Deprecate model field in ML model summary classes
                 Key: SPARK-13785
                 URL: https://issues.apache.org/jira/browse/SPARK-13785
             Project: Spark
          Issue Type: Improvement
          Components: ML
            Reporter: Joseph K. Bradley
            Priority: Minor


ML model summary classes (e.g., LinearRegressionSummary) currently expose a 
field "model" containing the parent model.  It's weird to have this circular 
reference, and I don't see a good reason why the summary should expose it 
(unless I'm forgetting some decision we made before...).

I'd propose to deprecate that field in 2.0 and to remove it in 2.1.



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