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https://issues.apache.org/jira/browse/SPARK-2515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14074802#comment-14074802
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Doris Xin commented on SPARK-2515:
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A toString method sounds like a really good idea here actually. I think
originally we planned the Summary object to hold anything that isn't standard
across tests, and in the case of chi squared, I can't think of anything else to
put in there. Having the toString method instead would allow us to have a
single TestResult class across tests, too.
Sure, we can go with degreesOfFreedom.
> Hypothesis testing
> ------------------
>
> Key: SPARK-2515
> URL: https://issues.apache.org/jira/browse/SPARK-2515
> Project: Spark
> Issue Type: Sub-task
> Components: MLlib
> Reporter: Xiangrui Meng
> Assignee: Doris Xin
>
> Support common statistical tests in Spark MLlib.
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