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tantiger
Singapore
41 Posts |
 Posted - 04/25/2022 : 11:08:40 PM
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Origin Ver. and Service Release (Select Help-->About Origin): OriginPro 2021b (64-bit) SR2 9.8.5.212 (Academic)
Operating System: Windows 11 Home
Hi,
I am trying to use LabTalk to do a non-linear fitting (3 peaks with Lorentz fitting). If I don't specify range, the script can give results as expected:
nlbegin iy:=(1,2) func:=lorentz replica:=2 nltree:=ParamTree;
ParamTree.xc = 351;
ParamTree.xc__2 = 356;
ParamTree.xc__3 = 417.5;
nlfit;
...
However, if I add the range, then the script just does not work as the cod value of fitting is 0.
nlbegin iy:=(1,2)[99:161] func:=lorentz replica:=2 nltree:=ParamTree;
ParamTree.xc = 351;
ParamTree.xc__2 = 356;
ParamTree.xc__3 = 417.5;
nlfit;
...
Need some help here. Thanks :D
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Edited by - tantiger on 04/25/2022 11:18:36 PM |
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tantiger
Singapore
41 Posts |
Posted - 04/26/2022 : 10:06:48 PM
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OK, I tried other ranges and found some work some cannot.
For example, I set the range to [99:171] then I can get fitting results.
Also tried on other datasets I have, some work with [99:161]. |
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YimingChen
1665 Posts |
Posted - 04/27/2022 : 3:25:49 PM
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Have you tried running the fit on the same range in the NLFit dialog? can it succeed? Thanks.
James |
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tantiger
Singapore
41 Posts |
Posted - 04/28/2022 : 10:03:15 PM
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| Yes, and that's why I would like to use labtalk to ease the work. But strangely, the same range won't work in labtalk. |
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Topic |
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Subrange not work in nlfit