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calculate degree of freedom lmer
4 messages · Arunkumar Pillai, Dennis Murphy, Søren Højsgaard +1 more
Hi: Start here: http://glmm.wikidot.com/faq and read the link to the R-help post by Prof. Bates cited in the section titled Why doesn't lme4 provide p values/denominator degrees of freedom? HTH, Dennis
On Sun, Dec 25, 2011 at 10:15 PM, Arunkumar Pillai <akpbond007 at gmail.com> wrote:
Hi how to calculate degree from lmer object Please can any one help ? ? ? ?[[alternative HTML version deleted]]
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Seasons greetings! As mentioned on http://glmm.wikidot.com/faq, pbkrtest provides an implementation of a Kenward-Roger approximation for calculating degrees of freedom (the function KRmodcomp()). What is not mentioned is that pbkrtest also implements a parametric bootstrap approach for testing two nested models (the function PBmodcomp()). Regards S?ren ________________________________________ Fra: r-sig-mixed-models-bounces at r-project.org [r-sig-mixed-models-bounces at r-project.org] På vegne af Dennis Murphy [djmuser at gmail.com] Sendt: 26. december 2011 10:21 Til: Arunkumar Pillai Cc: r-sig-mixed-models at r-project.org Emne: Re: [R-sig-ME] calculate degree of freedom lmer Hi: Start here: http://glmm.wikidot.com/faq and read the link to the R-help post by Prof. Bates cited in the section titled Why doesn't lme4 provide p values/denominator degrees of freedom? HTH, Dennis
On Sun, Dec 25, 2011 at 10:15 PM, Arunkumar Pillai <akpbond007 at gmail.com> wrote:
Hi
how to calculate degree from lmer object
Please can any one help
[[alternative HTML version deleted]]
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1 day later
S?ren H?jsgaard <Soren.Hojsgaard at ...> writes:
Seasons greetings! As mentioned on http://glmm.wikidot.com/faq, pbkrtest provides an implementation of a Kenward-Roger approximation for calculating degrees of freedom (the function KRmodcomp()). What is not mentioned is that pbkrtest also implements a parametric bootstrap approach for testing two nested models (the function PBmodcomp()).
I think this was mentioned there, just not in exactly the same place on the page. I've added/cleaned up a bit now -- let me know if it's not clear or needs something added. Ben Bolker