trend

This keyword enables the use of deterministic polynomial trend function

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

none

No trend function

constant

Constant trend function

linear

Use a linear polynomial or trend function

reduced_quadratic

Quadratic polynomials - main effects only

quadratic

Use a quadratic polynomial or trend function

Description

Enable the use of a deterministic polynomial trend function whose coefficients are found through regression. The user may choose a constant, linear, or quadratic polynomial.

Default Behavior Defaults to no trend when keyword is absent.