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Posted to issues@spark.apache.org by "Peng Meng (JIRA)" <ji...@apache.org> on 2016/09/12 11:05:20 UTC

[jira] [Created] (SPARK-17505) Add setBins for BinaryClassificationMetrics in mlllb/evaluation

Peng Meng created SPARK-17505:
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             Summary: Add setBins for BinaryClassificationMetrics in mlllb/evaluation
                 Key: SPARK-17505
                 URL: https://issues.apache.org/jira/browse/SPARK-17505
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
            Reporter: Peng Meng
            Priority: Minor


Add a setBins method for BinaryClassificationMetrics.
BinaryClassificationMetrics is a class in mllib/Evaluation. numBins is a key attribute of it. If numBins greater than 0, then the curves (ROC curve, PR curve) computed internally will be down-sampled to this many "bins". 
It is useful to let the user set the numBins.



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