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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/06/23 00:28:01 UTC

[jira] [Assigned] (SPARK-8541) sumApprox and meanApprox doctests are incorrect

     [ https://issues.apache.org/jira/browse/SPARK-8541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-8541:
-----------------------------------

    Assignee:     (was: Apache Spark)

> sumApprox and meanApprox doctests are incorrect
> -----------------------------------------------
>
>                 Key: SPARK-8541
>                 URL: https://issues.apache.org/jira/browse/SPARK-8541
>             Project: Spark
>          Issue Type: Test
>          Components: PySpark
>    Affects Versions: 1.3.1, 1.4.0
>            Reporter: Scott Taylor
>            Priority: Minor
>              Labels: tests
>
> The doctests for sumApprox and meanApprox methods test against an upper bound but not a lower bound. If there was a regression in the underlying code that caused things to go wrong the doctest may not fail. For example if sumApprox returned 0 the doctest would return -1 which is less than 0.05. Solution is to use the abs() function to test that the approximate answer is within 5% of the exact answer.



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