[R-sig-ME] New to LMER with 2 (easy?) questions...

Emmanuel Charpentier charpent at bacbuc.dyndns.org
Thu May 21 23:53:16 CEST 2009


Unless I'm badly mistaken, the notation (1|Site/Block) unambiguously
nests blocks within sites, whatever their labels might be. And means (1
| Site) + (1 | (RenamedBlocks:Site)

Right ?

					Emmanuel Charpentier

Le vendredi 22 mai 2009 à 09:17 +1200, Rolf Turner a écrit :
> On 22/05/2009, at 9:14 AM, Hank Stevens wrote:
> 
> > HI Rolf,
> > The BLOCK numbers should reflect their "true" underlying nature.
> > These data would suggest that Site and Block are crossed because e.g.
> > BLOCK 1 exists at two sites:
> > SITE  BLOCK
> > 1    1
> > 1    2
> > 1    3
> > 2    1
> > 2    2
> > 2    3
> >
> > These data would suggest that Blocks are unique (and therefore
> > necessarily nested within Sites):
> > SITE  BLOCK
> > 1    1
> > 1    2
> > 1    3
> > 2    4
> > 2    5
> > 2    6
> 
> That's what I thought.  But it's the opposite of what Ben Bolker said.
> Unless, of course, I'm totally confused.
> 
> 	cheers,
> 
> 		Rolf
> 
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