[R] Var-Cov matrix from LMER function

[Joshua Wiley]

Hi Cheryl,

Here is an example of how to get the fixed and random effects
covariance matrices.

require(lme4)
(fm1 <- lmer(Reaction ~ Days + (Days|Subject), sleepstudy))
## fixed effects
vcov(fm1)
## random effects
VarCorr(fm1)

## for documentation, see
method?vcov("mer")

Hope this helps,

Josh

On Mon, Aug 8, 2011 at 6:06 AM, Cheryl Johnson
<johnson.cheryl625 at gmail.com> wrote:
> Hello,
>
> Is there a way to get the Var-Cov matrix from the LMER function?
>
> Thanks
>
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-- 
Joshua Wiley
Ph.D. Student, Health Psychology
Programmer Analyst II, ATS Statistical Consulting Group
University of California, Los Angeles
https://joshuawiley.com/