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 Issue with Nonlinear Curve Fit in OriginPro 2018		  New Topic  Reply to Topic
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lasec2016

2 Posts
Posted - 04/05/2025 :  09:41:43 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release: OriginPro 2018 (64-bit) SR1 b9.5.1.195
Operating System: Windows 11

Hello,
I have a problem with OriginPro 2018 related to nonlinear fitting. After selecting the graph, I follow the path:
Analysis → Fitting → Nonlinear Curve Fit...
The NLFit window opens, but I can't access the various functionalities—for example, I’m unable to define or select functions. It seems like the interface is either incomplete or not responsive.


Has anyone encountered a similar issue or knows how to solve it?

Thanks in advance!

ChaoC

USA
184 Posts
Posted - 04/07/2025 :  09:00:38 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hello lasec2016,

Please try the steps here:
https://my.originlab.com/forum/topic.asp?TOPIC_ID=20154

Best,
Chao
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