Returns the per-group random-effect posterior summaries. Under NUTS the
non-centred draws are reconstructed to the natural BLUP scale
(b_{g,c} = sigma_c * (L z_g)_c) and summarised; the deterministic Laplace
path returns the variance-component EM modes and their Schur-complement
standard errors. When the fit carries no formula random effects this falls
back to the generic flat random-effect table.
Usage
# S3 method for class 'tobs_fit'
ranef(object, ...)