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Flavs
Spain
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 Posted - 09/15/2006 : 1:13:04 PM
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Origin Version (Select Help-->About Origin): 7.5
Operating System:xp sp2
Hi, I have made a script to do a gauss fit. I made it mainly coping other scripts from the forum, so maybe is not the best piece of code. But the code seems to work properly for me.
I want to change the two following things , after the code executes it creates a window with the fitting data, I want to avoid this!!! I only nead the peak of the curve an I alredy write this on a variable at the end of the code.
Second thing I want to change, I don´t want to give initial values to the parameters of the fitting, when you do a gauss fit using the origin interface (Analysis:: FitGaussian) you don´t need to specify any values, so why do I have to initialize the parameters when I execute my script. If I don´t initialize the parameters the code doesn´t work.
my script
[main]
rango1=%1; // data begin
rango2=%2; // data end
campo=%3; // field (dataset name)
tem=%4; // temperature (dataset name)
nlsf.init(); // initialize fit
nlsf.dataBegin=rango1; // begin range
nlsf.dataEnd=rango2; // end range
nlsf.func$="Gauss"; // define function to be used during fitting
nlsf.constr$=""; // clean ???
nlsf.fitData$=h$(campo)t$(tem)_re; // define data to be fitted
nlsf.funcX$=h$(campo)t$(tem)_an;// X data to be used to create fit dataset
nlsf.p1= 2; // initialize parameters
nlsf.p2=260;
nlsf.p3=30;
nlsf.p4=10;
nlsf.iterate(150); // perform 150 iterations
pico=nlsf.p2; // write xc in pico variable
nlsf.end(); |
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Mike Buess
USA
3037 Posts |
Posted - 09/15/2006 : 2:49:18 PM
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1> Insert nlsf.output(0); before nlsf.iterate(150); to avoid the graph window.
2> Analysis::FitGaussian initializes the parameters automatically. You can do the same by replacing nlsf.p1=2; nlsf.p2=260; nlsf.p3=30; nlsf.p4=10; with nlsf.execute("paranint");.
Mike Buess
Origin WebRing Member |
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Flavs
Spain
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Posted - 09/16/2006 : 4:26:32 PM
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| Thanks !!! you are really helpful. |
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Flavs
Spain
Posts |
Posted - 09/18/2006 : 04:05:37 AM
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Hi, It´s me again, everything works fine. But I want to modify a detail, I don´t want the plot of the curve fitting in my graph, how do I change this detail?.
Thanks. |
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Mike Buess
USA
3037 Posts |
Posted - 09/18/2006 : 08:15:42 AM
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Use nlsf.end(1) instead of nlsf.end().
Mike Buess
Origin WebRing Member |
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Topic |
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gauss fit