Hi Stefo,
Perhaps this post might be useful:
http://www.nabble.com/error-bars-to22092367.html#a22092367


HTH,

Jorge


On Tue, Mar 10, 2009 at 6:39 PM, Stefo Ratino <sratino@yahoo.com> wrote:

> Hi all,
>
> I am looking for a R function which unables me to plot mean +/- SEM. Is
> there such a function in R?
>
> Many thanks,
> Stefo
>
>
>
>
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