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T O P I C R E V I E W
lambda00	Posted - 07/27/2015 : 09:50:58 AM Hi, I have to fit data with a quite complex model, where the fit value is a quotient of two two-dimensional integrals. Is it possible to define such fitting procedure in origin? I tried the following: http://www.originlab.com/doc/Tutorials/Fitting-Integral-NAG http://www.originlab.com/doc/Tutorials/Fitting-Integral-LabTalk but they seem to be limited to one one-dimensional integral. I would be very grateful for any help. I am using Origin 2015.
1 L A T E S T R E P L I E S (Newest First)
Echo_Chu	Posted - 07/28/2015 : 03:23:27 AM Hi, For two-dimensional integrals, I would suggest you use the nag function, d01fcc or d01gbc. You can look at their document as below http://www.originlab.com/pdfs/nagcl09/manual/pdf/d01/d01fcc.pdf http://www.originlab.com/pdfs/nagcl09/manual/pdf/d01/d01gbc.pdf Then you can define your fitting function with the nag functions above accordingly to tutorial below http://www.originlab.com/doc/Tutorials/Fitting-Integral-NAG Echo OriginLab Corp.

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