R help - Mar 2009 - bargraph.CI change se for sd

Hi there, 
I am a beginner.
I would like to change the error bars in the bargraph.CI function from the
default (se) to (sd). The help file says
ci.fun= function(x) c(fun(x)-se(x), fun(x)+se(x))
Is there a simple way of telling the function what (x) precisely is - I
already define in in the  of the bargraph.CI function and assume that is
should be able to use that information.

cheers,
Herwig
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Package name?
Example code?

--  
On Mar 21, 2009, at 4:22 AM, herwig wrote:
>
> Hi there,
> I am a beginner.
> I would like to change the error bars in the bargraph.CI function  
> from the
> default (se) to (sd). The help file says
> ci.fun= function(x) c(fun(x)-se(x), fun(x)+se(x))
> Is there a simple way of telling the function what (x) precisely is  
> - I
> already define in in the  of the bargraph.CI function and assume  
> that is
> should be able to use that information.
>
> cheers,
> Herwig
> -- 
David Winsemius, MD
Heritage Laboratories
West Hartford, CT