[R] adding the mean and standard deviation to boxplots

Richard.Cotton at hsl.gov.uk Richard.Cotton at hsl.gov.uk
Mon Feb 4 17:54:35 CET 2008


> "As for the standard deviation, are you sure you want this?  Standard 
> deviation only makes sense if the data are normally distributed..."
> --------------
> 
> -- This is false, of course. What you probably meant to say is something
> like:
> 
> "The sample standard deviation may not tell you what you think it tells 
you
> if the underlying data are not distributed something like a normal
> distribution."

Yes.  How very sloppy of me.  Consider my wrist slapped.

Regards,
Richie.

Mathematical Sciences Unit
HSL


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