[R-sig-ME] comparing 3 levels of fixed factor in lme4
andrewobermeier at me.com
Mon Jul 30 14:28:34 CEST 2012
I'll read Pinhiero and Bates more carefully.
Doctoral Candidate, Temple University, Japan.
On Jul 30, 2012, at 9:24 PM, Thomas Petzoldt <Thomas.Petzoldt at TU-Dresden.de> wrote:
> On 7/30/2012 1:51 PM, Obermeier Andrew wrote:
>> If you have a specific book to suggest I would appreciate it. I have
>> Pinhiero and Bates (2000), Mixed Effects Models in S and S-Plus, but
>> have not found specific mentioned of how the t value is derived there
> You may consider to read Pinheiro & Bates more carefully or consult an introductory text about model selection and likelihood ratio tests, e.g.:
> Johnson, J., G. & Omland, K. S. (2004) Model Selection in Ecology and Evolution. Trends in Ecology and Evolution, 19, 101-108.
>> I admit my ignorance in this area, and apologize if my questions are
>> dumb, but nevertheless would appreciate some civility.
> > Andrew Obermeier
> ... so please add a little background (or an email signature) so that it is possible to find an appropriate scientific and/or technical level in our answers.
> Hope it helps
> Dr. Thomas Petzoldt
> Technische Universitaet Dresden
> Faculty of Forest, Geo and Hydro Sciences
> Institute of Hydrobiology
> 01062 Dresden, Germany
> E-Mail: thomas.petzoldt at tu-dresden.de
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