.. _method-multifidelity_function_train-statistics_mode-active: """""" active """""" use statistics for the active 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 active model level/fidelity. This approach avoids some computational overhead in some cases by avoiding expansion roll-up. *Default Behavior* *Expected Output* *Usage Tips* *Additional Discussion*