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From "Suneel Marthi (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (MAHOUT-1841) Matrices.symmetricUniformView(...) returning values in the wrong range.
Date Sat, 30 Apr 2016 00:48:13 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-1841?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suneel Marthi reassigned MAHOUT-1841:
-------------------------------------

    Assignee: Suneel Marthi

> Matrices.symmetricUniformView(...) returning values in the wrong range.
> -----------------------------------------------------------------------
>
>                 Key: MAHOUT-1841
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1841
>             Project: Mahout
>          Issue Type: Bug
>          Components: Math
>    Affects Versions: 0.12.0
>            Reporter: Andrew Palumbo
>            Assignee: Suneel Marthi
>             Fix For: 0.12.1
>
>
> Per javadocs, {{Matrices.symmetricUniformView(...)}} is meant to return values in on
the range of [-1,1): 
> {code}
> /**
>    * Matrix view based on uniform [-1,1) distribution.
>    *
>    * @param seed generator seed
>    */
>   public static final Matrix symmetricUniformView(final int rows,
>                                                   final int columns,
>                                                   int seed) {
>     return functionalMatrixView(rows, columns, uniformSymmetricGenerator(seed), true);
>   }
> {code}
> Ranges being returned now are on (-.5,.5).



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