All Forums  Origin Forum  Origin Forum  Issue with Nonlinear Curve Fit in OriginPro 2018

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by lasec2016[/i] [br]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! [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.