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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 emk[/i] [br]Origin Version (Select Help-->About Origin):7.5 Operating System:XP sp 2 Sometimes we would like to illustrate e.g. the effect of different treatments relative to a control with data scaled with the control value. Thus 'no effect' will give a value of 1, doubling give a value of 2 and half the effect give a value of 0.5. If this kind of data are plotted as column plot, it is difficult to compare the effects, as when the values are increased relative to the control, they are in the range [1, infinity), and all the decreased values in the range (0,1] due to the nonlinear mapping (a decrease, however large it is, can maximally produce a change in the column height as large as a two-fold increase would produce). If a log (log2) axis be used and the colums have their bases at he level of "1", comparisons could be easily made (see figure below). Of course error bars etc should be added, but is this kind of plot at all available in Origin? I tried but could not produce one (the figure below has been done by drawing rectangles on a Origin log2 layer) [img]/ftp/forum_and_kbase/Images/SamplePlot.jpg[/img] Edited by - emk on 01/18/2006 1:21:30 PM Edited by - emk on 01/18/2006 1:23:05 PM [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.