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boxplot and number of observations per box

3 messages · Marc Bernard, Chuck Cleland, Henrique Dallazuanna

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On 1/30/2008 6:42 AM, Marc Bernard wrote:
Something like this?

X <- boxplot(count ~ spray, data = InsectSprays, col = "lightgray")

mtext(side=1, line = 2, at = 1:nlevels(InsectSprays$spray), paste("n=", 
X$n, sep=""))

  
    
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Try this also:

y<-rnorm(50)
x<-factor(sample(letters[1:5],50,replace=T))
bp <- boxplot(y~x)
text(1:5, bp$stats[3,]+.1, paste("n", bp$n, sep="="))
On 30/01/2008, Marc Bernard <bernarduse1 at yahoo.fr> wrote: