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 multiexponential decay fitting		  New Topic  Reply to Topic
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yeshuji

Japan
Posts
Posted - 01/13/2006 :  4:01:47 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin): 7.0 pro
Operating System:winxp

I define a new function
y=y0+A1*exp(-(x-xc)/t1)+A2*exp(-(x-xc)/t2)+A3*exp(-(x-xc)/t3)+A4*exp(-(x-xc)/t4) to do a multiexponential decay fitting. But the fitting is very slow and many errors happen.

How to resolve this probelm?

Thanks a lot

easwar

USA
1964 Posts
Posted - 01/14/2006 :  11:39:40 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Are you using Origin C or LabTalk script? Origin C will be much faster.

Please send your OPJ with the data and the fitting function FDF file to tech support so they can take a look at your specific problem.

Easwar
OriginLab



Edited by - easwar on 01/14/2006 11:42:41 AM
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