[R-sig-ME] Duplicating meta-regression results from PROC MIXED with lmer

[Rolf Turner]

On 6/05/2009, at 3:00 PM, Brant Inman wrote:

> R-experts:
>
> In 2002, Hans Van Houwelingen et al. published a tutorial on how to do
> meta-regression in Statistics in Medicine.  They used the classic BCG
> dataset of Colditz to demonstrate correct methodology and computed the
> results using PROC MIXED in SAS. In trying to duplicate the results
> presented in this paper, I have discovered that I can reproduce
> certain items with lmer but not others.  I was hoping that someone
> might point out how I could correctly program R code to arrive at the
> correct solution.

	<snip>

There appears to be a tacit assertion here that the results from PROC
MIXED in The-Package-That-Must-Not-Be-Named are the correct results.

This assertion is very likely to bring the wrath of Doug Bates down
upon your head.  An outcome to be devoutly avoided! :-)

	cheers,

		Rolf Turner

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