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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 pgmaloney[/i] [br]Origin Ver. and Service Release: 8.6 SR3 Operating System: Win7 I have spectroscopy data where X-data is wavelength and Y-Data is signal. I would like to normalize the Y-data to itself such that the maximum of the Y-data after calculation now appears as a value of 1.0. I would like to do this as part of a right-click "Set Column Values" calculation. Finally I would like to specify which rows (X-data) where to find the maximum in Y-data to normalize with, say, 300-1000 nanometers in a data set that is 200-1200 nanometers wide (as an example). Thanks!! [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.