[R] Creating a box plot with whiskers when I only have mean, sd and n

[Rolf Turner]

On 14/03/14 08:52, Frederik Borup wrote:
> Dear all,
>
> I want to create a boxplot with whiskers. I want to compare several
> studies. For each study I have
>
>     1. mean
>     2. standard deviation (sd)
>     3. name
>     4. number of observations (n)
>
> How can i do this in R ?
>
> normally I would type
>> bxp
> or
>> boxplot
>
> but this is not allowed when I only know mean and sd.

(1) Read the help for bxp.
(2) Think about what you want your box and whiskers to *represent* given 
that you only know the summary statistics.  (Is it *really* meaningful 
to create a boxplot in such circumstances?)
(3) If you can figure that out, then create an appropriate argument (a 
list) for bxp() and call bxp() with that argument.

cheers,

Rolf Turner