Re: [Quantlib-dev] Problem with method residualNorm() in the class NonLinearLeastSquare

[Luigi B. <lui...@gm...>]

Klaus,
	I guess you're the expert here. May you have a look at it?

Thanks,
	Luigi

On Thu, 2009-01-29 at 10:43 +0100, Silakhdar Krikeb wrote:
> Lately I did some optimization work and wrote code using class
> NonLinearLeastSquare. I discovered that the method residualNorm()
> does not return the proper expected result with the
> optimization method LevenbergMarquardt. After some investigation, I
> think I solved the problem by adding the following line:
>  
> P.setFunctionValue(P.costFunction().value(x_));  
>  
> to the metod LevenbergMarquardt::minimize(Problem&,const
> EndCriteria&) (levenbergmarquardt.cpp, Ln 95 just after
> P.setCurrentValue(x_))


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