.. _method-multifidelity_function_train-statistics_mode-combined: """""""" combined """""""" use statistics for the combined expansion within multifidelity refinement .. toctree:: :hidden: :maxdepth: 1 **Specification** - *Alias:* None - *Arguments:* None **Description** When performing adaptive refinement in multifidelity UQ methods, this option adapts based on the statistics for the aggregate multifidelity expansion. This approach may incur additional computational overhead, but ensures that the refinement occurs in the aggregate multifidelity context. *Default Behavior* *Expected Output* *Usage Tips* *Additional Discussion*