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Posted to issues@madlib.apache.org by "Rahul Iyer (JIRA)" <ji...@apache.org> on 2016/02/29 20:28:18 UTC
[jira] [Resolved] (MADLIB-895) Incorrect examples in hypothesis
tests documentation
[ https://issues.apache.org/jira/browse/MADLIB-895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rahul Iyer resolved MADLIB-895.
-------------------------------
Resolution: Fixed
Fixed with [0545cdf|https://github.com/apache/incubator-madlib/commit/0545cdfc499354820af670b627a2769ae6af75b1]
> Incorrect examples in hypothesis tests documentation
> ----------------------------------------------------
>
> Key: MADLIB-895
> URL: https://issues.apache.org/jira/browse/MADLIB-895
> Project: Apache MADlib
> Issue Type: Bug
> Components: Module: Inferential Statistics
> Reporter: Rahul Iyer
> Assignee: Frank McQuillan
> Priority: Minor
> Fix For: v1.9
>
>
> The SQL and results for the example for Chi-2 tests is wrong. The documentation shows the result as
> {code}
> statistic | p_value | df | phi | contingency_coef
> ------------------+----------------------+----+------------------+-------------------
> 138.289841626008 | 2.32528678709871e-25 | 9 | 2.93991753313346 | 0.946730727519112
> {code}
> whereas it should be,
> {code}
> statistic | p_value | df | phi | contingency_coef
> ------------------+----------------------+----+-----------------+-------------------
> 320.125868955635 | 1.39464882809491e-63 | 9 | 4.4730154045931 | 0.975909209031126
> (1 row)
> {code}
> The SQL also has a couple of errors and does not run as is.
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