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 Fitting one function to another one		  New Topic  Reply to Topic
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luk4sz

Poland
2 Posts
Posted - 09/01/2017 :  09:42:18 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hi,

I'm curious if there is an option in OriginLab to fit one function to another. I have experimental data. I also have theoretical calculations. I would like to be able to match the theoretical results to the experimental ones (I only have points for the theoretical function, I do not have formula) and get the parameters of that fit, and also to assess to what extent the same theoretical predictions agree with the experiment.

Best Regards.

arstern

USA
237 Posts
Posted - 09/01/2017 :  10:38:23 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Please take a look at our nonlinear fitting tutorials to see if this helps.

http://www.originlab.com/doc/Tutorials/Fitting-NLFit-Basic
http://www.originlab.com/doc/Tutorials/Nonlinear-Fitting

Info on comparing datasets or fitting models:
http://www.originlab.com/doc/Quick-Help/Compare-Datasets-FittingModels

Aviel
OriginLab
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Hideo Fujii

USA
1582 Posts
Posted - 09/01/2017 :  1:40:14 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

In addition to Aviel's info, if you don't have the formula of the fitting function, the following tutorial may also be helpful:
http://www.originlab.com/doc/Tutorials/Fitting-Datasets

--Hideo Fujii
OriginLab
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