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https://issues.apache.org/jira/browse/MAHOUT-1884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suneel Marthi updated MAHOUT-1884:
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    Fix Version/s: 0.13.0

> Allow specification of dimensions of a DRM
> ------------------------------------------
>
>                 Key: MAHOUT-1884
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1884
>             Project: Mahout
>          Issue Type: Improvement
>    Affects Versions: 0.12.2
>            Reporter: Sebastian Schelter
>            Assignee: Sebastian Schelter
>            Priority: Minor
>             Fix For: 0.13.0
>
>
> Currently, in many cases, a DRM must be read to compute its dimensions when a 
> user calls nrow or ncol. This also implicitly caches the corresponding DRM.
> In some cases, the user actually knows the matrix dimensions (e.g., when the 
> matrices are synthetically generated, or when some metadata about them is 
> known). In such cases, the user should be able to specify the dimensions upon 
> creating the DRM and the caching should be avoided. 



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