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From "Matthew Hayes (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DATAFU-42) Simplify BagGroup output
Date Mon, 28 Apr 2014 17:24:18 GMT

     [ https://issues.apache.org/jira/browse/DATAFU-42?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthew Hayes updated DATAFU-42:
--------------------------------

    Attachment: DATAFU-42.patch

Attaching patch that updates the documentation and website and adds a new test case.

> Simplify BagGroup output
> ------------------------
>
>                 Key: DATAFU-42
>                 URL: https://issues.apache.org/jira/browse/DATAFU-42
>             Project: DataFu
>          Issue Type: Improvement
>            Reporter: Sam Steingold
>         Attachments: DATAFU-42.patch
>
>
> {{BagGroup}} keeps the redundant {{group}} information in its output.
> E.g., see [DATAFU-38]:
> {code}
> (1,{(b,1),(a,2)},{(B,{(B,3)}),(A,{(A,1),(A,2)})})
> (2,{(c,1),(b,2)},{(B,{(B,3),(B,5)}),(A,{(A,1),(A,2)}),(C,{(C,4),(C,6)})})
> {code}
> can be
> {code}
> (1,{(b,1),(a,2)},{(B,{3}),(A,{1,2})})
> (2,{(c,1),(b,2)},{(B,{3,5}),(A,{1,2}),(C,{4,6})})
> {code}
> without loss of information
> Given that the bug [DATAFU-38] rendered this function quite useless and it was fixed
just last week, I think {{BagGroup}} has not been used before, so this backward-incompatible
change will not break any existing code.



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