[R-sig-eco] Repeated mesaures mixed model in R

[Manuel Spínola]

Dear list members,

I am fitting a repeated measures mixed model in R.

I have a response variable (continuous) with 4 treatments.  Each treatment
has 4 plots, and each plot was divided in 4 subplots.  The variable was
measured 5 times (occasions).

My attempt is:

mod <- lmer(response variable ~ occasion * treatment + (occasion |
plot/subplot)

Is the model parameterization correct?

Best,

Manuel

-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspinola at una.cr <mspinola at una.ac.cr>
mspinola10 at gmail.com
Teléfono: (506) 8706 - 4662
Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/>
Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/>

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