[R] Significance asterisk in a bar plot

[Frank E Harrell Jr]

Gilad wrote:
> Hi all,
>  
> How do I add an asterisk representing a significant difference to a barplot?
>  
> Cheers,
> Gil

Bar plots are dreadful ways to present information (see 
http://biostat.mc.vanderbilt.edu/DynamitePlots).  Don't make them worse 
by adding arbitrary declarations of 'significance.'  Show asymmetric 
two-sided confidence intervals.

Frank

-- 
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University