[R] indicating significant differences in boxplots

John Kane jrkrideau at yahoo.ca
Mon Jul 7 22:30:43 CEST 2008

HI Sebasian,

I don't think I have ever seen this type of presentation.  Could you provide a reference to a journal article that uses this?  It might make it easier to visualize exactly what you want.  

--- On Mon, 7/7/08, Sebastian Merz <sebastian.merz at web.de> wrote:

> From: Sebastian Merz <sebastian.merz at web.de>
> Subject: [R] indicating significant differences in boxplots
> To: r-help at r-project.org
> Received: Monday, July 7, 2008, 5:19 AM
> Hi all!
> Writing a paper using a lot of boxplots I was asked to mark
> the
> significant differences between plotted groups using
> "stars on
> top". 
> These stars are found freqeuntly in medical papers and
> printed
> above boxplots when there is a significant difference
> (usually using a
> bar to indicate which groups are meant if there are more
> then two in a
> plot). 
> I was able to calculate whatever test, check the
> significance and
> depending on it to put a star (written with text-function)
> between
> two groups in a boxplot. But I was not
> able to make the text between two groups apear above the
> actual
> plotting region nor to draw a simple line, indicating which
> plots are
> meant. Also this solution seems to more of a hack then
> actual
> programming.
> Is there a better way to solve this issue? Any ideas where
> to look?
> I hope I haven been clear and thank you for your effort,
> S. Merz
> ______________________________________________
> R-help at 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.

More information about the R-help mailing list