[R] Error bars for interaction plots

[Ben Bolker]

  Put your own solution together with arrows(...,angle=90), or use plotCI
within gregmisc, or get plotCI from my website
(http://www.zoo.ufl.edu/bolker/R/windows -- you want the bbmisc bundle)

  Ben

On Fri, 28 Feb 2003, Katrina Grech wrote:

> 
> How do I add error bars to an interaction plot of means?
> 
> Thanks
> 
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