All Forums  Origin Forum  Origin Forum  user defined fitting function builder

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

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 kngozibullock@usbr.gov[/i] [br]I am attempting to fit my data using the following: y=(((0.667)*M*Poe*((OCR/2.0)^A)*ln(Ir))/(1+50*x))+((Poe*(1-(OCR/2.0)^A))/(1+5000*x)) I have defined all my variables. When I evaluate the equation I get realistic values of y, but the function will not converge. I have tried using various function types, but am not familiar with Origin C or Lab TALK script. Not sure if this is an error in my function or function type or other user error. KNB [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.