[R] lme4: How to specify nested factors, meaning of : and %in%

[Ben Bolker]

Shouli Li <shouli.li <at> utu.fi> writes:

> 
> I have the same problem. I am wondering have you solved the problem already?
> 
> 	[[alternative HTML version deleted]]
> 
> 


  It's completely unclear from this message what the context is,
so it's unanswerable -- sorry.  (Perhaps there was a link to
the original question that got stripped -- I'm reading it on
gmane.comp.lang.r.general ...)

  Can you please repost this to r-sig-mixed-models at r-project.org,
referencing https://stat.ethz.ch/pipermail/r-help/2008-April/158761.html
(which I was able to find by doing some googling)?