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 Peakanalysis with Parameter dependensies		  New Topic  Reply to Topic
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Fabrice Schöneberger

Germany
4 Posts
Posted - 05/03/2022 :  10:13:28 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. 9.8.5.212
Operating System: Windows

So I want to fit a curve that has 6 gaussians in it, but because of the circumstances of the experiment I know that the amplitues of the first and last, 2nd and 5th and 3rd and 4th have to be equal. Same for some other parameters with a little different dependensies.
For one parameter I can just select that all gaussians "share" the same one and that works for that one, but how can I tell origin the other dependensies?

ChaoC

USA
165 Posts
Posted - 05/04/2022 :  08:58:15 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Fabrice,

This app allows you to choose which parameters are shared.
https://www.originlab.com/fileExchange/details.aspx?fid=475

Chao
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Fabrice Schöneberger

Germany
4 Posts
Posted - 05/04/2022 :  09:32:07 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi ChaoC,
This unfortunatly doesn't work for me.
The App only allows to select multiple datasets and plot them together.
I have only one dataset of 6 Gaussians, that are overlapping.
But thanks for the try
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ChaoC

USA
165 Posts
Posted - 05/04/2022 :  10:10:38 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

There is a Fit Control button in the Fit Peaks (Pro) section in the Peak Analyzer dialog. Under the Share column you can choose which parameters are shared by grouping them by number. The Fit Control tab allows you to enable and set constraints.



Here is the documentation if you need more information:
https://www.originlab.com/doc/en/Origin-Help/PeakAnalyzer-FitPara-Dialog

Chao
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