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From "Sebastian Schelter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAHOUT-979) RowSimilarityJob should be able to infer the number of columns from the input matrix if not specified
Date Tue, 08 May 2012 18:47:48 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270700#comment-13270700
] 

Sebastian Schelter commented on MAHOUT-979:
-------------------------------------------

I'm currently working in your patch. Let me run the tests myself.

Your code looks very good, but you should only post patches that already passed the unit tests.
                
> RowSimilarityJob should be able to infer the number of columns from the input matrix
if not specified 
> ------------------------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-979
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-979
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Math
>    Affects Versions: 0.6, 0.7
>            Reporter: Suneel Marthi
>            Assignee: Suneel Marthi
>            Priority: Minor
>              Labels: mahout
>             Fix For: 0.7
>
>         Attachments: Mahout-979.patch
>
>
> Presently RowSimilarityJob expects to be provided the 'numberOfColumns' (-r) by the user
and this is not an optional argument. If this is not specified explicitly RowSimilarityJob
should be able to get the number of columns by the vector size. 

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