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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2014/12/05 20:31:12 UTC

[jira] [Created] (SPARK-4766) ML Estimator Params should subclass Transformer Params

Joseph K. Bradley created SPARK-4766:
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             Summary: ML Estimator Params should subclass Transformer Params
                 Key: SPARK-4766
                 URL: https://issues.apache.org/jira/browse/SPARK-4766
             Project: Spark
          Issue Type: Improvement
          Components: ML
    Affects Versions: 1.2.0
            Reporter: Joseph K. Bradley


Currently, in spark.ml, both Transformers and Estimators extend the same Params classes.  There should be one Params class for the Transformer and one for the Estimator, where the Estimator params class extends the Transformer one.

E.g., it is weird to be able to do:
{code}
val model: LogisticRegressionModel = ...
model.setMaxIter(10)
{code}




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