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https://issues.apache.org/jira/browse/SPARK-11658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Or resolved SPARK-11658.
-------------------------------
          Resolution: Fixed
            Assignee: chris snow
       Fix Version/s: 1.7.0
    Target Version/s: 1.7.0

> simplify documentation for PySpark combineByKey
> -----------------------------------------------
>
>                 Key: SPARK-11658
>                 URL: https://issues.apache.org/jira/browse/SPARK-11658
>             Project: Spark
>          Issue Type: Improvement
>          Components: Documentation, PySpark
>    Affects Versions: 1.5.1
>            Reporter: chris snow
>            Assignee: chris snow
>            Priority: Minor
>             Fix For: 1.7.0
>
>
> The current documentation for combineByKey looks like this:
> {code}
>         >>> x = sc.parallelize([("a", 1), ("b", 1), ("a", 1)])
>         >>> def f(x): return x
>         >>> def add(a, b): return a + str(b)
>         >>> sorted(x.combineByKey(str, add, add).collect())
>         [('a', '11'), ('b', '1')]
>         """
> {code}
> I think it could be simplified to:
> {code}
>         >>> x = sc.parallelize([("a", 1), ("b", 1), ("a", 1)])
>         >>> def add(a, b): return a + str(b)
>         >>> x.combineByKey(str, add, add).collect()
>         [('a', '11'), ('b', '1')]
>         """
> {code}
> I'll shortly add a patch for this.



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