Dakota Reference Manual: cross_validation_metric

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cross_validation_metric

Choice of error metric to satisfy

## Specification

Alias: none

Argument(s): STRING

Default: root-mean-squared error

Child Keywords:

| Required/Optional | Description of Group | Dakota Keyword | Dakota Keyword Description
--- | --- | --- | --- | ---
| Optional | folds | Number of cross validation folds

## Description

The cross-validation score that the auto-refinement routine seeks to satisfy is based on an error metric. Any of the surrogate diagnostic metrics may be used. These include:

- root_mean_squared
- mean_abs
- rsquared
- sum_squared
- mean_squared
- sum_abs
- max_abs

Default Behavior The default metric is the the root mean squared error ('root_mean_squared').