![]() |
Dakota Reference Manual
Version 6.15
Explore and Predict with Confidence
|
Output file for prediction variance calculations
Alias: none
Argument(s): STRING
Default: corrected model variance export to default filename
Child Keywords:
Required/Optional | Description of Group | Dakota Keyword | Dakota Keyword Description | |
---|---|---|---|---|
Optional (Choose One) | Tabular Format (Group 1) | custom_annotated | Selects custom-annotated tabular file format | |
annotated | Selects annotated tabular file format | |||
freeform | Selects freeform file format |
Enables the user to specify the name and format of the file to which corrected model variance information is output. The file will contain the values of the variances computed at those points specified with num_predictions
, prediction_configs
, or import_prediction_configs
.
For scalar responses, the prediction variance for each observable is calculated according to
Here, is the (co)variance calculated from the Gaussian process or polynomial regression model, details of which can be found in the Dakota User's and Theory Manuals. If experimental variance information is provided for the calibration, the maximum variance found for the observable
is used as
. For more details, see the Dakota User's and Theory Manuals. For field responses, the variance of the discrepancy model alone is output to this file.
Default Behavior
If export_corrected_variance_file
is not specified, information will be automatically output to dakota_discrepancy_variance_tabular.dat
.
Usage Tips
Dakota exports tabular data in one of three formats:
annotated
(default) custom_annotated
freeform