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Re: data fitting

Subject: Re: data fitting
Date: Fri, 13 Mar 98 17:18:44 +0100

     I don't know about non-linear fitting in octave (for polynomials 
     there's polyfit).
     I used quite a lot the fitting in gnuplot. At least in recent betas it 
     workes really well. Anyway it gives you the best fit parameters AND 
     the error on these parameters, so that you can verify directly the 
     results. Anyway you can compare your fitted curve with your datas 
     graphically, plotting both on the same graph.

______________________________ Reply Separator _________________________________
Subject: data fitting 
Author:  <address@hidden > at NOVARALINK
Date:    3/13/98 9:40 AM

I'd like to know if there are any functions to fit a user-defined function 
to a set of data. I've been looking to the manual but didn't find it.
Now I use the fit command in gnuplot, do you know how reliable it is? 
I'd also like to know if you use any software for such problems.
Thanks to everyone, octave is very useful.
Stefano Ghirlanda, Zoologiska Institutionen, Stockholms Universitet 
Office: Frescati Campus, Hus D, Rum 554. Office Phone: +46-8-164055 
Mail: Svante Arrheniusv. 14, S-106 91, Stockholm, Sweden           
E-mail: address@hidden, Web:

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