Hey hey, thanks for your answer. Yes, you are right - "beautiful" i something else. I found that thing in the R-help pages. But it would have been a starting point...
My dataset consists of almost 1000 individual samples - each of them analysed for the different elements. I think that the sample is big enough to do some statistical analyses with. The problem is, that the concentration of many elements lies below the detection limit and all "<" values were replaced with one half of their value. This causes a very ugly distribution. I know that the data don`t become any better by showing the confidence interval in a different way. I just thought, that parantheses would be more reader-friendly. But I talked to some colleagues in the office, who do not have problems with the notched version. So I finally decided, to keep my boxplots with the weird looking edges =) Thanks a lot for your help, fussel -- View this message in context: http://n4.nabble.com/Error-message-when-using-error-bars-x-add-TRUE-tp1560278p1567510.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.