trend
Choose a trend function for a Gaussian process surrogate
Specification
Alias: None
Arguments: None
Default: reduced_quadratic
Child Keywords:
Required/Optional |
Description of Group |
Dakota Keyword |
Dakota Keyword Description |
---|---|---|---|
Required (Choose One) |
Trend Order |
Constant trend function |
|
Use a linear polynomial or trend function |
|||
Quadratic polynomials - main effects only |
|||
Use a quadratic polynomial or trend function |
Description
The only trend functions that are currently supported are polynomials.
The trend function is selected using the trend
keyword, with options constant
, linear
, or reduced_quadratic
.
The reduced_quadratic
trend function includes the main
effects, but not mixed/interaction terms.
The Surfpack GP (See surfpack
)
has the additional option of (a full)
quadratic
.