zero323 commented on a change in pull request #27190: [SPARK-30504][PYTHON][ML]
Set weightCol in OneVsRest(Model) _to_java and _from_java
URL: https://github.com/apache/spark/pull/27190#discussion_r366605335
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File path: python/pyspark/ml/classification.py
##########
@@ -2558,11 +2558,17 @@ def _from_java(cls, java_stage):
labelCol = java_stage.getLabelCol()
predictionCol = java_stage.getPredictionCol()
rawPredictionCol = java_stage.getRawPredictionCol()
+ weightCol = (
+ java_stage.getWeightCol() if
+ java_stage.isDefined(java_stage.getParam("weightCol"))
+ else None)
classifier = JavaParams._from_java(java_stage.getClassifier())
parallelism = java_stage.getParallelism()
py_stage = cls(featuresCol=featuresCol, labelCol=labelCol,
predictionCol=predictionCol,
- rawPredictionCol=rawPredictionCol,
classifier=classifier,
- parallelism=parallelism)
+ rawPredictionCol=rawPredictionCol,
+ classifier=classifier, parallelism=parallelism)
+ if weightCol:
+ py_stage.setWeightCol(weightCol)
Review comment:
Thanks @huaxingao
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