Message-ID: <9150415E-C1BF-49CA-B38D-7433CBFFB844@auckland.ac.nz>
Date: 2009-05-06T03:43:23Z
From: Rolf Turner
Subject: Duplicating meta-regression results from PROC MIXED with lmer
In-Reply-To: <663622AC-080A-4D7D-B218-A7B9CD0BA9EE@me.com>
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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