Hi Seng,
To control the fit quality in my programs I am using the following :
/* see Minuit doc */
gMinuit->mnstat(amin, edm, errdef, nvpar, nparx, istatus);
int migrad = getFitStatus((char *)gMinuit->fCstatu.Data()) ;
/*****/
int getFitStatus (char *Migrad)
/*****/
{
/* Transforming the MIGRAD char[]-status to a int-status
*
***********************************************************/
int i ;
char Status[][12]={"FAILED","PROBLEMS","CONVERGED","SUCCESSFUL"} ;
for(i=0 ; i < 5 ; i++)
if (strstr(Migrad,Status[i]) != NULL) return i ;
return -1 ;
}
Cheers,
Faouzi
F. Attallah
GSI mbH
Planckstr 1
D-64291 Darmstadt
Tel: +49 (0)6159 71 2743
Fax: +49 (0)6159 71 2901
Email: F.Attallah@gsi.de
On Tue, 4 May 1999, Woon-Seng Choong wrote:
>
> Hi,
> I used TH1:Fit to fit my histogram. How can I get the error return code
> to check whether the fit converged or not? I tried using
> gMinuit->GetStatus() but it always give me zero whether the fit converged
> or
> not.
>
> Seng
>
>
>
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