Re: [ROOT] fitting with ROOT

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Oct 24 2001 - 15:35:26 MEST


Hi Maria,

See http://root.cern.ch/root/htmldoc/TMinuit.html

Rene Brun

Maria Marchesini wrote:
> 
> Dear Root users
> I am a new ROOT user. I am using it actually just to make some simple fit
> to a straight line. I would like to know how ROOT calculate the errors on
> the parameter of the fit. I mean: suppose you want to make the fit to the
> straight line:
> y=a+bx
> ROOT gives you the value of a,b and the error on them. How does ROOT
> caclulate these errors??
> Thank you in advance,
> 
> Maria
> 
> ************************************************************************
> 
>                    THE SANDS OF TIME WERE ERODED BY
>                      THE RIVER OF CONSTANT CHANGE
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>   Maria (Luisa) Marchesini
>   Department of Physics & Astronomy     Tel: ++44-(0)113-2333872 (work)
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