[SPARK-11658] simplify documentation for PySpark combineByKey

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.5.1
• Fix Version/s: 1.6.0
• Component/s: Documentation, PySpark
• Target Version/s: 1.6.0
• Assignee: chris snow
• Reporter: chris snow
• Created: 11/Nov/15 15:54
• Updated: 12/Nov/15 23:51
• Resolved: 12/Nov/15 23:44

Description

The current documentation for combineByKey looks like this:

        >>> 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')]
        """

I think it could be simplified to:

        >>> 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')]
        """

I'll shortly add a patch for this.

Issue Links

• links to: [Github] Pull Request #9631 (snowch)
• links to: [Github] Pull Request #9640 (snowch)