[R-sig-ME] 'Missing' tests for lmer models

[John Fox]

Dear David and Luke,

I missed the beginning of this thread and couldn't find it in the R-sig-ME list archive, so it's not clear to me what the issue is -- sorry -- but I should clarify that Anova() for mer objects only does Wald tests -- either Wald chisquare tests or F-tests, the latter with Kenward-Roger df computed via the pbkrtest package. I think that this could be clearer in ?Anova.

Best,
 John

------------------------------------------------
John Fox
Sen. William McMaster Prof. of Social Statistics
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
http://socserv.mcmaster.ca/jfox/
	
On Wed, 10 Oct 2012 11:14:13 +1000
 David Duffy <David.Duffy at qimr.edu.au> wrote:
> On Tue, 9 Oct 2012, Luke Duncan wrote:
> 
> > New computer/32bit R:
> >
> > R version 2.15.1 (2012-06-22)
> > Platform: i386-pc-mingw32/i386 (32-bit)
> >
> > other attached packages:
> > [1] lme4_0.999999-0  Matrix_1.0-6  car_2.0-13
> >
> > Old computer/32bit R:
> >
> > R version 2.13.1 (2011-07-08)
> > Platform: i386-pc-mingw32/i386 (32-bit)
> >
> > other attached packages:
> > [1] lme4_0.999375-42   Matrix_0.9996875-3  car_2.0-11
> 
> Yes, these straddle a moderately large version change in lme4:
> see the intro at http://lme4.r-forge.r-project.org/
> 
> The most recent versions of Anova.II.mer() only supports c("chisq", "F"). John Fox may reintroduce Wald tests, but you can always do them yourself.
> 
> Cheers, David Duffy.
> 
> -- 
> | David Duffy (MBBS PhD)                                         ,-_|\
> | email: davidD at qimr.edu.au  ph: INT+61+7+3362-0217 fax: -0101  /     *
> | Epidemiology Unit, Queensland Institute of Medical Research   \_,-._/
> | 300 Herston Rd, Brisbane, Queensland 4029, Australia  GPG 4D0B994A v
> 
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