[R] use xyplot to plot mean and CI by groups

[csrabak]

Em 29/5/2012 17:42, John Smith escreveu:
> Dear R users,
>
> I am trying to use xyplot to draw group mean and CI. The following is the
> sample code.

[attached code snipped]

Did you try the plotmeans function from the gplots package?

> But I want:
>
>     1. Use different colors and symbols to draw individual points, CI and
>     the lines connect group means from different time points;
>     2. Add jitters to x axis to allow CIs not be overlapped
>

Both of these two requirements are covered in the options of the 
plotmeans function.

HTH

--
Cesar Rabak