[R] boxplots

[Bill.Venables at csiro.au]

Georg,

A boxplot does not have a mean-bar.  It has a median bar.

Bill Venables
CSIRO Laboratories
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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Georg Ehret
Sent: Wednesday, 30 April 2008 1:09 PM
To: r-help
Subject: [R] boxplots

Dear R user group,
   I am working with boxplots and cannot solve the following problem:

> data<-c(0,15,0,60,0,0,0,0,0,60,60,0,60,0,30,0)
> data
 [1]  0 15  0 60  0  0  0  0  0 60 60  0 60  0 30  0
> boxplot(data)


The boxplot has the first hinge and the mean-bar both at 0... Why is
this
the mean is clearly >0!
Thanking you and wishing you an excellent day,
Georg.
***************************
Georg Ehret
Johns Hopkins University
Baltimore, US

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