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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 gintea[/i] [br]Origin Ver. and Service Release (Select Help-->About Origin): OriginPro8 SR4 Operating System: Windows 8 Hello, I have a lot of datasets to analyse. Each one contains about 20 X,Y pairs of columns. For data contained at each Y column I have to find sigma from Gaussian fit (I don't need plots of Gaussian curves, just sigma) and then collect these sigma values for further analysis. I've been doing this the slow way - create a histogram for every Y column, change bin size to something sensible, and then fit gaussian curve. But it's very time consuming and it takes 3 workbooks for each Y column. Is there any faster way to do this? Not necessary in Origin, in case anyone has a better suggestion. [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.