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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 talal185[/i] [br]I am trying to do a data fitting for discontinued data points as shown in the graph. the end goal is to come up with a mathematical empirical expression to satisfy a simulation for example : f=(y0 + A1*exp(-X_loc/t1) + A2*exp(-X_loc/t2)) [img]https://my.originlab.com/ftp/forum_and_kbase/Images/data54654654564.jpg[/img] if what I am asking is possible, please include a screenshots on how to do it as I am not familiar with the software at all. if this is too much please help with what ever you can and here is the data points if needed cln2x Height 0.01 0.649733322 0.02 0.544762599 0.03 0.469952639 0.04 0.410967419 0.05 0.361048024 0.06 0.319574278 0.07 0.284487069 0.08 0.260129289 0.09 0.256857416 0.21 0.576229096 0.22 0.460785779 0.23 0.374907293 0.24 0.305080772 0.25 0.243946426 0.26 0.187378934 0.27 0.129727648 0.28 0.066151614 0.29 0.005557041 [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.