For fits run with save_log_lik = "chunked", the per-iteration
pointwise log-likelihood lives in per-column-chunk binary files instead
of fit$log_lik. This helper reconstitutes the
[n_stored, n_obs] matrix in memory by issuing one readBin
per chunk. loo.lame() / waic.lame() call this transparently.
read_log_lik(x)The full [n_stored, n_obs] double matrix.
A fitted ame/lame object with
$log_lik_chunks (i.e. fit with save_log_lik = "chunked").