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Hello, a probably rather stupid question to which I can't find an answer: I have a bar chart, and I want to present which bars are significantly different by placing a line with an asterisk above then (similarly to fig. 3 in: http://jnm.snmjournals.org/content/46/4/574.figures-only). Does anyone have a reference where can I find some instructions how to learn this? Thanks a lot! Omer -- View this message in context: http://r.789695.n4.nabble.com/Showing-which-bars-in-a-bar-chart-are-significantly-different-tp3649897p3649897.html Sent from...