[R] Whiskers on the default boxplot {graphics}

[David Winsemius]

On May 11, 2010, at 9:45 PM, Jason Rupert wrote:

> How are the lower/upper whiskers defined in the default version of  
> boxplot {graphics}?
>
> I tried help(boxplot) and searching www.rseek.org, but I was unable  
> to determine an absolute answer.

You need to follow the links from the help pages and tin this case it  
appears that you did not follow the one to

?boxplot.stats

>
> I checked out the definition of boxplot according to Wikipedia (http://en.wikipedia.org/wiki/Box_plot 
> ), but it also had several approaches
> listed for how the whiskers could be determined, so I'm just curious  
> how the default
> boxplot {graphics} does it.
>
> Thanks for any feedback

Follow links with the R help system.

> and insights.



David Winsemius, MD
West Hartford, CT