Lei Wang created SPARK-17934:
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             Summary: Support percentile scale in ml.feature
                 Key: SPARK-17934
                 URL: https://issues.apache.org/jira/browse/SPARK-17934
             Project: Spark
          Issue Type: New Feature
          Components: ML
            Reporter: Lei Wang


Percentile scale is often used in feature scale.
In my project, I need to use this scaler.
Compared to MinMaxScaler, PercentileScaler will not produce unstable result due 
to anomaly large value.

About percentile scale, refer to https://en.wikipedia.org/wiki/Percentile_rank



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