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From "Dimitri Pourbaix (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MATH-405) Inconsistent result from Levenberg-Marquardt
Date Wed, 11 Aug 2010 13:28:21 GMT

     [ https://issues.apache.org/jira/browse/MATH-405?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dimitri Pourbaix updated MATH-405:
----------------------------------

    Attachment: MATH-405.patch

Correction patch

> Inconsistent result from Levenberg-Marquardt
> --------------------------------------------
>
>                 Key: MATH-405
>                 URL: https://issues.apache.org/jira/browse/MATH-405
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 2.1
>            Reporter: Dimitri Pourbaix
>            Assignee: Dimitri Pourbaix
>             Fix For: Nightly Builds
>
>         Attachments: MATH-405.patch
>
>
> Levenberg-Marquardt (its method doOptimize) returns a VectorialPointValuePair.  However,
the class holds the optimum point, the vector of the objective function, the cost and residuals.
 The value returns by doOptimize does not always corresponds to the point which leads to the
residuals and cost

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