zhengruifeng created SPARK-28399:
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Summary: Impl RobustScaler
Key: SPARK-28399
URL: https://issues.apache.org/jira/browse/SPARK-28399
Project: Spark
Issue Type: Improvement
Components: ML
Affects Versions: 3.0.0
Reporter: zhengruifeng
RobustScaler is a kind of widely-used scaler, which use median/IQR to replace
mean/std in StandardScaler. It can produce stable result that are much more
robust to outliers. It is already a part of
[Scikit-Learn|https://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.RobustScaler.html#sklearn.preprocessing.RobustScaler].
So far, it is now implemented in ML.
I encounter a practical case that need this feature, and notice that other
users also wanted this function in SPARK-17934, so I am to add it in ML.
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