06/06/2025 | gzatryb | Dear Support Team,
Thank you for your reply. I saved the fitting function in Convolution category and I can use it with NLFit. You were right - I can now select any weighting method available in Origin. This is great. Unfortunately, something is wrong with your function – the fitting curve is shifted with respect to my data and I do not know why. When I perform the fit directly through your App this problem does not exist. It only appears when I use your fitting function via NLFit. However, residuals and Chi2 seem to be correct – only the calculated curve (the curve resulting from the convolution integral) is significantly shifted to the right and it does not overlap with my data. This is problematic because I cannot make any visual inspection of the fit quality. Do you know why this happens? |
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06/05/2025 | OriginLab | Hi gzatryb,
You can use Fit Convolution App to save the fitting function as FDF in Convolution category by clicking the Save as... button then you can re-use it in other fitting tool such as NLFit with weight setting.
OriginLab Support |
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06/04/2025 | gzatryb | I have a question - when this App performs fitting does it use weights? I usually use yfit option for my weights and I would like to use it also with this app. Is it possible? Thanks. |
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03/03/2025 | | Doesnt work |
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02/22/2025 | DYQ97 | I solve the problems before. But i have a new questions. How can i use this function and sent parameters to it in the LabTalk script?I have too many data to fit sequentially. |
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02/11/2025 | DYQ97 | Hey there. I have some missing data in y, which is column B under XYXY mode. The fitting is good, but the fitted Y curve is break on the x points which correspoding the missing data in column B. For example, under XYXY mode, I have 100 x points in column A. However, column B contains 50 real data y at first, followed by 10 missing data "--" , and 40 real data y at last. I have a continuous instrumental responce (Col C and D). After the fitting, there are only 90 x points in FitNLCurve->A(X1) with 90 fitted y points in B(Y1). I want to have the whole fitted Y curve, so i make a convolution of the signal function, with the fitted parameters i got before, and the instrumental responce by myself. But the results is different from the FitNLCurve->B(Y1) on the amplitude. Is there any solutions for export the whole continues fitted Y curve? |
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12/19/2024 | OriginLab | Hi CathyDC,
You need to define the signal function and click the Save as... button to re-use it later. We will improve the usability of this app.
OriginLab Tech Support |
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12/19/2024 | OriginLab | Hi CathyDC,
Origin 2022b supports to use this app. We are not sure why the functions do not show up in your app. We suggest you can send your detail question to our support team by sending a ticket in this page: https://www.originlab.com/restricted/support/newticket.aspx?c=3
OriginLab Tech Support |
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12/17/2024 | CathyDC | Does not work on 2022b
functions do not show up etc |
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12/17/2024 | CathyDC | Does not work on 2022b
functions do not show up etc |
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