Re: [ROOT] TMultiDimFit fails,

From: Rene Brun (Rene.Brun@cern.ch)
Date: Mon Aug 23 2004 - 18:03:38 MEST

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Hi Tomasz,

Thanks for reporting this problem.
The problem should be fixed now in CVS. However, I would appreciate
the confirmation from Christian Holm that my fix is correct.

Rene Brun

Tomasz Bold wrote:
> 
> Hi rooters,
>         I am observing strange feature. The TMultiDimFit object works fine
> except if created with an option "k". Without this I am getting the
> coefficients until the warning "TMultiDimFit::MakeCoefficientErrors>:
> curvature matrix is singular" which seems to be handled. With an "k"
> option this seems lead to crash.
> 
> I tested it with an vendor-root example. Just add use "vk" while creating
> the fitter and you will have the feature reproduced.
> 
> Regards,
>         Tomasz Bold
> 
> --------------------------------------
> Tomasz Bold
> mail me:
> bold@ftj.agh.edu.pl,
> Tomasz.Bold@cern.ch
> Tomasz.Bold@desy.de
> or call:
> +48 12 617 4729 (AGH)
> +48 12 662 8023 (IFJ)
> -------------------------------------

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