Re: Recovering information from TFitter

Hi William,

You have to assign some memory to parname , like Char_t parname[16]

Eddy

• William Love <love_at_bnl.gov> wrote:

> Root
> I'm using Version 4.04/02 6 November 2005 on Linux machines
> at BNL.
>
> I make a TFitter with
>
> TVirtualFitter *minuit = TVirtualFitter::Fitter(0, 19);
>
> After the fit I try to recover the parmeters to save them to a
> file.
>
> Double_t ParVal = minuit->GetParameter(i);
> Double_t ParErr = minuit->GetParError(i);
>
> works fine but if I try to get the parameter names via
> char* parname = "";
> Double_t ParVal, ParErr, Vlow, Vhi;
> minuit->GetParameter(i,parname,ParVal,ParErr,Vlow,Vhi);
>
> I get a seg fault. Is it obvious what I'm doing wrong?
>
> Bill Love
Received on Sat Mar 18 2006 - 03:10:46 MET