Sorry about that.
Basically I have two fixed factors (experimental group and sex) and a random factor
(brood). I need the random factor to control for pseudoreplication because I have siblings,
which are pseudoreplicates because share genes/environment.
however, it is not a nested design. Then I have 8 variables.
so I want to compare the covariance structures among groups while controlling for
the random factor. I was told that R might do that, I mean a manova with mixed effects.
 
Cheers
David
 
______________________________________________ 

David Costantini, PhD

http://www.davidcostantini.it
NERC Postdoctoral research associate

Institute of Biodiversity, Animal Health and Comparative Medicine
School of Life Sciences
College of Medical, Veterinary and Life Sciences
University of Glasgow
Graham Kerr Building, room 511
Glasgow G12 8QQ, UK

See also my association Ornis italica
http://www.ornisitalica.com
http://www.birdcam.it
____________________________________________________


________________________________

From: Helios de Rosario [mailto:helios.derosario@ibv.upv.es]
Sent: Fri 18/05/2012 15.14
To: David Costantini; r-help@r-project.org
Subject: Re: [R] MANOVA with random factor



Hi, after re-reading I think that I misunderstood your question. You
don't provide many details, but I suppose that the "brood" effect is
nested within the fixed effects, so you don't mean a multivariate
approach for a split-plot or a repeated-measures design, but the
analysis of a multivariate mixed effects model. Do you?

In that case, perhaps the package MCMCglmm may help, although I have
never used it, so I can't tell anything for sure.

Helios

>>> El día 17/05/2012 a las 12:05, "David Costantini"
<David.Costantini@glasgow.ac.uk> escribió:
> Dear All
> I would need to perform a MANOVA with both fixed (group, sex,
group*sex) and
> random (brood) effects. I wonder if this is at all possible and if R
does
> that.
> At the moment, I only know that I can run a classic MANOVA with R.
>
> Thank you
> David
>
> ______________________________________________
>
> David Costantini, PhD
>
> http://www.davidcostantini.it <http://www.davidcostantini.it/> 
> NERC Postdoctoral research associate
>
> Institute of Biodiversity, Animal Health and Comparative Medicine
> School of Life Sciences
> College of Medical, Veterinary and Life Sciences
> University of Glasgow
> Graham Kerr Building, room 511
> Glasgow G12 8QQ, UK
>
> See also my association Ornis italica
> http://www.ornisitalica.com <http://www.ornisitalica.com/> 
> http://www.birdcam.it <http://www.birdcam.it/> 
> ____________________________________________________
>
>
>
>
>       [[alternative HTML version deleted]]

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