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Posted to issues@commons.apache.org by "Thomas Neidhart (JIRA)" <ji...@apache.org> on 2012/11/10 18:51:19 UTC

[jira] [Updated] (MATH-886) SingularValueDecomposition fails to calcuate matrix rank

     [ https://issues.apache.org/jira/browse/MATH-886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Neidhart updated MATH-886:
---------------------------------

    Fix Version/s: 3.0
    
> SingularValueDecomposition fails to calcuate matrix rank
> --------------------------------------------------------
>
>                 Key: MATH-886
>                 URL: https://issues.apache.org/jira/browse/MATH-886
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 2.2
>         Environment: jdk1.6 on windows machine
>            Reporter: alberto trivellato
>             Fix For: 3.0
>
>
> for the matrix {{0.0,1.0,0.0,1.0,1.0,1.0,0.0,0.0},
>  {0.0,0.0,1.0,0.0,0.0,0.0,1.0,1.0},
>  {1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0},
>  {1.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0}}, SVD return rank=4, but it is 3.

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