Re: [ROOT] TMinuit/TFitter

From: Rene Brun (Rene.Brun@cern.ch)
Date: Fri Apr 21 2000 - 08:26:17 MEST


Hi Jane,
Currently, we have only one fitter (TFitter) based on Minuit.
By default, TVirtualFitter::Fitter creates a TFitter object that uses
TMinuit. You can also use TMinuit directly.
minexam.cxx illustrates the use of a TVirtualFitter in general.
The same code should run if we decide to add or switch to a different
fitter in the future.

Rene Brun

On Thu, 20 Apr 2000, Jane Burward-Hoy wrote:

> 
> Hello,
> 
> In the index of root classes it lists TFitter as 
> "The ROOT standard fitter based on TMinuit." 
> 
> In the example test/minexam.cxx, TVirtualFitter
> is used.
> 
> I am currently using TMinuit directly.
> 
> Which class should one use when writing/compiling
> software? 
> 
> Cheers,
> 
> Jane
> 
> 
> ---------------------------------------------------------------------------
> 
> Jane M. Burward-Hoy				
> 
> Relativistic Heavy Ion Group (RHIG)	
> Department of Physics and Astronomy
> University at Stony Brook
> Stony Brook, NY 11734
> (516) 632-9007
> 
> RHIG website http://mickey.physics.sunysb.edu/phenix
> PHENIX website http://www.phenix.bnl.gov/
> 
> ---------------------------------------------------------------------------
> 



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