Brms approach to Stan models for nested versus non-nested multi-level models?

[ssp3nc3r]

Would:

Trying to make a "three-level nested linear model" run faster

So, with the help of @wds15, I post here the vectorized code of the model, with the non-centered parametrization. I hope someone else will find it useful in future. Many thanks to Kazuki Yoshida that initially shared his code. data { // Define variables in data // Number of level-1 observations int<lower=0> Ni; // Number of level-2 clusters int<lower=0> Nj; // Number of level-3 clusters int<lower=0> Nk; // Cluster IDs int<lower=1, upper=Nj> classid[Ni]; int<lower=1, upper…

Be a start?