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Dakota Reference Manual
Version 6.13
Explore and Predict with Confidence
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Trend function order of the model discrepancy
Alias: none
Argument(s): none
Default: 2
Child Keywords:
Required/Optional | Description of Group | Dakota Keyword | Dakota Keyword Description | |
---|---|---|---|---|
Required (Choose One) | Correction Order (Group 1) | constant | Use constant trend discrepancy function | |
linear | Use linear trend discrepancy function | |||
quadratic | Use quadratic trend discrepancy function |
Whether Gaussian process or polynomial regression model is selected as the discrepancy formulation, the order of the trend function may be specified using the correction_order
command followed by either constant
, linear
, or quadratic
.
Note that for Dakota 6.8 and earlier, this keyword only applies to discrepancy calculations for scalar responses. For field responses, a Gaussian process model with a quadratic function is used by default.