Dear all,
I am having some issues with the multiple peak fitting function in Origin (2018). My workflow is as follows:
- My data are baseline corrected and normalized between 0 and 1 after exporting from the measurement software
- I import the text data (2 columns - Wavenumber and Peak intensity) into Origin
- I click the line chart symbol
- I edit its Y-scale between 0 and 1
- I choose Analysis - Multiple Peak Fitting - Open Dialog
- I choose my wavenumber limits and click ok
- I select the 2 peaks that I am interested in
- The fitting window opens
- A good fit is obtained, showing the 2 fitted peaks, report sheets are created
- I add an extra sheet to the workbook and copy - paste (as links) the data that I am interested in from the repo- - - - - rt pages into this new sheet
- This procedure I then save as an analysis template (as explained in one of your tutorial videos)
So far everything works OK.
Now I would like to run this analysis template on multiple similar data files.
I choose File > Batch processing > Select the template that was just saved > Load files > Edit configuration > Press OK
The batch process runs correctly and I get an output file with my results.
Unfortunately the results are different (and worse) than when I do them file by file. The problem is that the fitted peaks now go below 0 (although all my data are normalized between 0 and 1. In the manual processing workflow I could adjust the Y scale on the chart before starting the fitting and then this problem did not occur... The file in attachment shows a fitting in batch processing mode.
I checked all possible settings in the Multiple Peak fitting dialog and checked several manuals and instruction videos, but can't really find anything for the moment.
Does anyone know a way to force this fitting between intensities from 0 to 1 (or just limited by file limits) in Batch processing mode?
Thanks for the help!
Kind regards,
Nigel
hi.,
Select Gadgets: Integrate from the Origin menu when the graph window is active, to bring up the Integrate: addtool_curve_integ dialog box. Go to the Baseline tab. Choose Constant Y for the Method, and then enter 2 in the Y= edit box. Click the OK button.
For More info:
https://www.originlab.com/doc/Origin-Help/Batch-Processing
Thanks, I already found a solution by adding boundaries for y0 in the settings of the function as well. Works as expected now!
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