[Ifeffit] Fitting procedure

[Kelly, Shelly]

....and what we are trying to say is that your method is not generally
accepted as the best way to model data.

 

Shelly

 

________________________________

From: ifeffit-bounces at millenia.cars.aps.anl.gov
[mailto:ifeffit-bounces at millenia.cars.aps.anl.gov] On Behalf Of abhijeet
gaur
Sent: Friday, April 17, 2009 2:29 AM
To: ifeffit
Subject: [Ifeffit] Fitting procedure

 

Hi all,

         Thanks to all the concerned persons for having such a wonderful
discussion over fitting procedure. I am able to understand the things
better by going through these discussions. But what I am trying to say
is that I had first applied the fitting procedure in which I make the
parameters of all paths( included in the fit) to vary simultaneously,
but the problem is that I am not able to get a good fit and the
parameters for different paths are also coming absurd like very low
amplitude etc. For days I have been trying this method of fitting but
not able to get good results.I tried different models also like Debye &
Einstien model, I used the relation del r= alpha* Reff but it doesn't
work. Then I switch to this the method in which we fit the first shell,
get the parameters fix them and then go for the next shell and in this
way e fix the whole spectra. The results I got are extremely good. Thus
I am using this method. 

 
Abhijeet Gaur

 


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