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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 jd0331[/i] [br]Origin Ver. and Service Release (Select Help-->About Origin): OriginPro 7.5 SR0 Operating System: Windows XP Hi, I have over 50 sets of data and would like to perform the curve fitting for each set. When I performed the fitting, I usually iterated it about 80 times by clicking 100 Iter. button again and again to mimimize the Chi^2 and maximize the R^2. However, the problem is that I now have too many data sets to do it. It takes so long time that I cannot do anything while I was fitting and analyzing them. Additionally, it takes pretty long time to fit a single set as it contains a lot of data columns. Is there a function that allows us to perform curve fitting automatically after inserting many sets of data? Can I get the each fitting result after running the function? If so, could you let me know how to do it please? As I want the high-quality fitting results, I would like to make it iterate more than 100 times to minimize chi^2 and maximize R^2, and get each result of data sets after finishing the fitting. [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.