brms (version 2.1.0)

compare_ic: Compare Information Criteria of Different Models

Description

Compare information criteria of different models fitted with WAIC or LOO.

Usage

compare_ic(..., x = NULL, ic = c("loo", "waic"))

Arguments

...

At least two objects returned by WAIC or LOO. Alternatively, brmsfit objects with information criteria precomputed via add_ic may be passed, as well.

x

A list containing the same types of objects as can be passed via ....

ic

The name of the information criterion to be extracted from brmsfit objects. Ignored if information criterion objects are only passed directly.

Value

An object of class iclist.

Details

For more details see compare.

See Also

WAIC, LOO, add_ic, compare

Examples

# NOT RUN {
# model with population-level effects only
fit1 <- brm(rating ~ treat + period + carry,
            data = inhaler, family = "gaussian")
waic1 <- WAIC(fit1)

# model with an additional varying intercept for subjects
fit2 <- brm(rating ~ treat + period + carry + (1|subject),
            data = inhaler, family = "gaussian")
waic2 <- WAIC(fit2)

# compare both models
compare_ic(waic1, waic2)
# }
# NOT RUN {
# }