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 multiple curve fitting
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lalipna

Argentina
1 Posts

Posted - 02/23/2002 :  5:07:36 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Im a new user of origin and Im trying to find a way to obtain the solution to this problem:
I have three equations with unknown parameters that are related one with each other, and their data tables. I need to fit each curve simultaneously to obtain the best parameters for the 3 curves.

Can I do that with origin?

Mike

USA
357 Posts

Posted - 02/25/2002 :  08:55:51 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi lalipna:

You can fit multiple datasets to the same function with or without sharing parameters. If you opt NOT to share parameters, you will obtain a different set of parameter values for each dataset. By sharing parameters, you will obtain a single set of parameter values for all datasets.

For more information go to your Origin Help file, select the Index tab and search on "Nonlinear least squares fitter:fitting multiple datasets."

This should get you going.

Mike
Technical Support
OriginLab
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