Re: [ROOT] Fitting values

From: Raghunath Sahoo (raghu@iopb.res.in)
Date: Thu Jul 24 2003 - 08:24:39 MEST


Hello,


> >    Suppose I fit a function to a 1-d histogram.
> > What is the function in ROOT used to fetch the following information ?
> 
> There is no special function to return this info, but..
> > 
> > 1. The maximum value of the data point (x-value) used in the fitting.
> 
>  This is the center of the last non empty bin


In general this may not be  true always.
In case of fitting a function to a histogram, all points
need not go to the fit. Hence the centre of the last
non-empty bin may not go to the fitting. 
There should be some way out to know the 1st & last point which
go to the fit. 

Thanks & Regards,
Raghunath.



> 
> > 
> > 2. The minimum value of the data point (x-value) used in the fitting.
> 
>  This is the center of the first non empty bin
> 
> Rene Brun
> 
> >   
> > 
> > Any help is most welcome.
> > Thanks in advance,
> > Cheers,
> > Raghunath.
> > 
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> 



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