Duplicating meta-regression results from PROC MIXED with lmer
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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