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https://issues.apache.org/jira/browse/SPARK-18739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhengruifeng resolved SPARK-18739.
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Resolution: Not A Problem
> Models in pyspark.classification and regression support setXXXCol methods
> -------------------------------------------------------------------------
>
> Key: SPARK-18739
> URL: https://issues.apache.org/jira/browse/SPARK-18739
> Project: Spark
> Issue Type: Improvement
> Components: ML, PySpark
> Reporter: zhengruifeng
> Priority: Major
>
> Now, models in pyspark don't suport {{setXXCol}} methods at all.
> I update models in {{classification.py}} according the hierarchy in the scala
> side:
> 1, add {{setFeaturesCol}} and {{setPredictionCol}} in class
> {{JavaPredictionModel}}
> 2, add {{setRawPredictionCol}} in class {{JavaClassificationModel}}
> 3, create class {{JavaProbabilisticClassificationModel}} inherit
> {{JavaClassificationModel}}, and add {{setProbabilityCol}} in it
> 4, {{LogisticRegressionModel}}, {{DecisionTreeClassificationModel}},
> {{RandomForestClassificationModel}} and {{NaiveBayesModel}} inherit
> {{JavaProbabilisticClassificationModel}}
> 5, {{GBTClassificationModel}} and {{MultilayerPerceptronClassificationModel}}
> inherit {{JavaClassificationModel}}
> 6, {{OneVsRestModel}} inherit {{JavaModel}}, and add {{setFeaturesCol}} and
> {{setPredictionCol}} method.
> With regard to models in clustering and features, I suggest that we first add
> some abstract classes like {{ClusteringModel}},
> {{ProbabilisticClusteringModel}}, {{FeatureModel}} in the scala side,
> otherwise we need to manually add setXXXCol methods one by one.
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