connecting boxplots

johnhj <jharris at web.de> wrote:

> Can you also describe me how to describe the standard
    > deviation of the boxplots/matrices ?
 
Try tapply:

    > x <-read.table(file="test.txt")	
    > x$group <- rep(1:8, each=5)
    > boxplot(V3~gruppe, data=x) 


with(x, tapply(V3, gruppe, sd))


Mike