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https://issues.apache.org/jira/browse/MATH-406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dimitri Pourbaix updated MATH-406:
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Attachment: MATH-406.patch
Correction patch.
> Wrong weight handling in Levenberg-Marquardt
> --------------------------------------------
>
> Key: MATH-406
> URL: https://issues.apache.org/jira/browse/MATH-406
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1
> Reporter: Dimitri Pourbaix
> Assignee: Dimitri Pourbaix
> Fix For: Nightly Builds
>
> Attachments: MATH-406.patch
>
>
> A comparison with a Fortran version of Levenberg-Marquardt reveals that when
> observations have different weights, the 2.1 version reaches a value of the
> function which does not necessary correspond to the minimum
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