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freefeynman123
Poland
6 Posts |
 Posted - 07/05/2016 : 1:00:28 PM
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I'm trying to write a script which fits linear combination of 4 Gaussian lines to multiple spectra (1 column with x rows and 51 with data) with suggested, but not fixed positions (something like Multiple Peak Fit, but used to many spectra). I tried a code like this:
loop (num, 2, 52)
{
nlbegin iy:=(1,num) func:=gauss + gauss + gauss + gauss;
}
but I don't know how to assign suggested peak positions to different Gaussian lines. I would appreciate any help. |
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Hideo Fujii
USA
1582 Posts |
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freefeynman123
Poland
6 Posts |
Posted - 07/07/2016 : 04:55:04 AM
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Thank you for the response, however the result is different from what I desired. I would like to have a fit like this:
However what I get looks like this:
there are no plots of single Gaussian peaks and I have no information about position, intensity etc. and it just fits to the one spectra, not the whole data.
I would really appreciate further help. |
Edited by - freefeynman123 on 07/07/2016 04:55:57 AM |
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Hideo Fujii
USA
1582 Posts |
Posted - 07/07/2016 : 11:01:56 AM
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Hi freefeynman123,
Finding hidden peaks requires appropriate treatment to succeed as described at:
http://www.originlab.com/doc/Origin-Help/FindPeak-PA
I have tried the Peak Analyzer (Goal=FitPeaks(Pro)) with four initial positions of 4 peaks manually at the bumps,
and got the following result:
Maybe you can first try this method, then you can consider the batch processing with Peak Analyzer?
Hope this info helps.
--Hideo Fujii
Originlab
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Topic |
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Multiple Gauss fitting script