[R-sig-ME] Correlation structure in lmer function

[ONKELINX, Thierry]

You can't. That is one of the (few) drawbacks of lme4.

HTH,

Thierry 


----------------------------------------------------------------------------
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey

-----Oorspronkelijk bericht-----
Van: r-sig-mixed-models-bounces at r-project.org [mailto:r-sig-mixed-models-bounces at r-project.org] Namens FMH
Verzonden: donderdag 17 september 2009 11:51
Aan: r-sig-mixed-models at r-project.org
Onderwerp: [R-sig-ME] Correlation structure in lmer function

Dear All,

Could someone give some advice on the way to define the correlation structure in lmer function from the lme4 package?

Thank you
Fir




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