[jira] [Closed] (MATH-376) One-time initialization in "DirectSearchOptimizer"

["Luc Maisonobe (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MATH-376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Luc Maisonobe closed MATH-376.
------------------------------


Closing issue as it was included in version 2.2, which has been released

> One-time initialization in "DirectSearchOptimizer"
> --------------------------------------------------
>
>                 Key: MATH-376
>                 URL: https://issues.apache.org/jira/browse/MATH-376
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Gilles
>            Priority: Minor
>             Fix For: 2.2
>
>
> In class  "DirectSearchOptimizer" (in package "optimization.direct"), the "optimize" method contains this code (at line 270):
> {code}
> if (startConfiguration == null) {
>     // no initial configuration has been set up for simplex
>     // build a default one from a unit hypercube
>     final double[] unit = new double[startPoint.length];
>     Arrays.fill(unit, 1.0);
>     setStartConfiguration(unit);
> }
> {code}
> I think that this has the consequence that it is impossible to call "optimize" a second time, where one would like to solve a problem with a different dimension.

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