[R-sig-ME] Unstructured Covariance Structure for lmer()

[Ben Bolker]

    "Unstructured" (aka 'general positive (semi)definite') covariance 
matrices are the *only* option in lme4.  If you give a little bit more 
detail/context about what you want to do, we may be able to help you better.

On 2023-12-22 3:00 p.m., Claire Campbell wrote:
> Hi -
> I was wondering how to implement an unstructured covariance structure in lmer(), is there code for that?
> Thank you!
> 
> 
> --
> 
> Claire Campbell
> Neuroscience PhD Candidate
> F31 NRSA Predoctoral Fellow
> Herting Neuroimaging Lab
> 
> USC Keck School of Medicine
> Department of Population and Public Health Sciences
> Los Angeles, CA, USA
> 
> 
> 	[[alternative HTML version deleted]]
> 
> _______________________________________________
> R-sig-mixed-models using r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models