Hi @jroon and @martinmodrak. It might be better to move these last discussions involving @jroon’s Gompertz model to a different post (or perhaps to the original post). The reason being that my original question deals with quite a different generative model (a four-parameter log-logistic model); I think keeping these two discussions separate will make it easier for future readers to identify relevant posts.
Perhaps an admin/mod can move these posts (@martinmodrak)?
Cheers,
Maurits