Imran Younus created SPARK-12230:
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Summary: WeightedLeastSquares.fit() should handle division by zero
properly if standard deviation of target variable is zero.
Key: SPARK-12230
URL: https://issues.apache.org/jira/browse/SPARK-12230
Project: Spark
Issue Type: Bug
Components: ML
Reporter: Imran Younus
Priority: Trivial
This is a TODO in WeightedLeastSquares.fit() method. If the standard deviation
of the target variablel is zero, then the regression is meaningless. I think
the fit() method should inform the user and exit nicely.
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