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Grouped PSIS-LOO Influence

Pointwise PSIS-LOO diagnostics may be aggregated by a declared participant, item, condition, or other observation-level grouping variable.

group_loo <- loo_group_influence_table(
  loo_atlas,
  group = "participant_id"
)

plot_loo_group_influence(group_loo)
plot_loo_group_elpd(group_loo)

Aggregation supports review of concentrated predictive influence. It never removes a group automatically.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.