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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 wz1416scripps[/i] [br]Origin Ver. and Service Release (Select Help-->About Origin): Origin Pro 2015 Operating System:Win7 Hi, I produced Marginal Distribution Curves following the steps provided from http://www.originlab.com/doc/Tutorials/Marginal-Distribution-Curve My question is whether the distribution curve normalized to the total sample size? I mean for histograms, the y value usually is count in the bin. Different numbers of total sample will give different counts (or heights on y axis) even when the distribution pattern is the same. How can we automatically normalize the counts in each bin to total counts? Is the histograms/distribution curve in the 'Marginal Distribution Curves' already normalized to the total sample size? The purpose of what I am trying to do is to compare the distribution of two group of data which have different sample size. Thanks, Chao [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.