Re: [ROOT] fit several gaus

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Jul 02 2002 - 21:53:02 MEST


Hi Karoly,

In attachement, a small script peaks.C
This script:
  - generate a histogram with a variable number of peaks (here 8)
  - Use the TSpectrum class as a peak finder
  - Compute the initial parameters
  - Fit

Rene Brun

On Tue, 2 Jul 2002 kmakonyi@nist.gov wrote:

> Dear ROOTers,
> 
> The problem is not ROOT specific, but I have no idea ...
> 
> I have a couple of peaks ( for example gaus-peaks ) what I would have to fit 
> together ( because they are overlapped ). It is not a big work for two peaks, 
> but it is for more then two ( I have such "peak-cluster" with 10 peaks, for 
> example..). And I have aproximetely 400 files with these data.
> The conservative way is the "interactive fitting" ( to set manually the 
> parameters ), but it is "not so confortable", because of the large number of 
> files. 
> Is there any method to automatize the process?
> Thanks, 
> Karoly MAKONYI
> 





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