The approximate standard error of the elpd difference is included when comparing 2 models. We can also include se(elpd_diff) as a column in the output when comparing > 2 models if, like elpd_diff, it refers to the each row vs the first row and not all pairwise combinations.
The approximate standard error of the elpd difference is included when comparing 2 models. We can also include se(elpd_diff) as a column in the output when comparing > 2 models if, like elpd_diff, it refers to the each row vs the first row and not all pairwise combinations.