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 How to fit fore than 12 Lorentzians		  New Topic  Reply to Topic
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a_user

USA
0 Posts
Posted - 03/13/2000 :  7:41:00 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I have a complicated spectrum that requires me to fit more than 12 individual Lorentzians to the data set. How do I do this???

Laurie

USA
404 Posts
Posted - 03/20/2000 :  8:11:00 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I assume that you are getting the dialog that says "Error! Too many peaks." when you are fitting from the menu, Analysis:Fit Multi-peaks.

You can use the Nonlinear Curve Fitter to fit multiple peaks. In the Advanced Mode of the fitter, select Options:Replicas, to set the number of peaks.

Origin's menu fitting routines are 'quick fits', but do not allow the user control over the fitting session like the NLSF does.

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Laurie
Microcal Technical Support
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