Dakota Reference Manual: statistics_mode

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statistics_mode

type of statistical metric roll-up for multifidelity UQ methods

## Specification

Alias: none

Argument(s): none

Default: DEFAULT_EXPANSION_STATS

Child Keywords:

| Required/Optional | Description of Group | Dakota Keyword | Dakota Keyword Description
--- | --- | --- | --- | ---
| Required (Choose One) | Statistics mode for refinement metric (Group 1) | active | use statistics for the active expansion within multifidelity refinement
combined | use statistics for the combined expansion within multifidelity refinement

## Description

When performing adaptive refinement in multifidelity UQ methods, one can adapt the expansion for a model level/fidelity based on its local statistics (`active`) or based on the statistics for the aggregate expansion (`combined`). The latter case may incur additional computational overhead, but ensures that the refinement occurs in the aggregate multifidelity context.

Default Behavior

Default for multifidelity methods is `combined` statistics.

Expected Output

Usage Tips

Additional Discussion