The posterior distributions created by
perf_mod() can be used to obtain
the posterior distribution of the difference(s) between models. One or more
comparisons can be computed at the same time.
An object produced by
Character vectors of equal length that specify the
specific pairwise contrasts. The contrast is parameterized as
A single integer for sampling from the posterior.
If a transformation was used when
x was created, the inverse is
applied before the difference is computed.
A data frame of the posterior distribution(s) of the difference(s).
The object has an extra class of
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