All Forums  Origin Forum  Origin Forum  Awful auto initialized parameters in any function

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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 Afrancisco[/i] [br]Hi, Suddenly, the functions such as Gauss, Lorentz or any other fitting function stopped initializing values properly, for instance the width is much smaller that it used to be. I installed recently the 2018 version. I worked with it for a couple of days, but it used to intialize parameters satisfactorily, but since I worked with an origin file from a previous version, in the Peak Analysis Dialog it initalizes a much much thinner peak that it should be. I attach an example. [img]http://www.originlab.com/ftp/forum_and_kbase/Images/peak width too thin.gif[/img] Could the peakpos() function used to initialize parameters be damaged? I also upload a screen caption of the initializing code of the gaussian, but since I can't modify that I don't see how could I have messed up that [img]http://www.originlab.com/ftp/forum_and_kbase/Images/peak width too thin2.jpg[/img] The problem may not be in the width, because I think the function used to initialize is a Gaussian, and if the Amplitude is set very low, then the width must be very thin in order to reach the summit of the peak. In fact, the higher the peak the thinner it initializes. I have added a function wich is the Gaussian Lorentz Cross Product, but assimetric, and I have set to initialize parameters with the function peakpos(), and it also initializes a very very think peak :( So I guess it's a problem of that initializing function, the peakpos()? How did it manage to get screwed? Could it be that I saved a Graph theme as system theme and it somehow affects the parameter initialization? How can I restore the function peakpos()? Thanks, Adrian Origin Ver. and Service Release (Select Help-->About Origin): Origin pro 2018 b9.5.0.193 Operating System: Windows 7 professional [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.