[R-sig-ME] lme4: constrain sigma to 0
Stuart Luppescu
slu at ccsr.uchicago.edu
Wed Feb 12 04:37:16 CET 2014
On Wed, 2014-02-12 at 11:49 +1300, Rolf Turner wrote:
> I can write out the specifics without much difficulty. I want to be
> careful about being absolutely clear in what I say, but, so it will
> take
> me a little while. I will get back to you fairly soon.
Can this be done flexibly so one could set the residual variance to any
value? I would like to fix the residual variance to 1.0 to adjust for
variation in measurement error in the observations as explained in
Raudenbush and Bryk 2002 p.354ff.
--
Stuart Luppescu <slu at ccsr.uchicago.edu>
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