Liang-Chi Hsieh created SPARK-7390:
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Summary: CovarianceCounter in StatFunctions might calculate
incorrect result
Key: SPARK-7390
URL: https://issues.apache.org/jira/browse/SPARK-7390
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Liang-Chi Hsieh
CovarianceCounter in StatFunctions has a merging stage. In this merge function,
the other CovarianceCounter object sometimes has zero count that causes the
final CovarianceCounter with incorrect result.
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