pattern_basis

Pattern basis selection

Specification

  • Alias: None

  • Arguments: None

  • Default: coordinate

Child Keywords:

Required/Optional

Description of Group

Dakota Keyword

Dakota Keyword Description

Required (Choose One)

Pattern Basis Type

coordinate

Use coordinate directions as search pattern

simplex

Use a minimal simplex for the search pattern

Description

The particular form of the search pattern is controlled by the pattern_basis specification. If pattern_basis is coordinate basis, then the pattern search uses a plus and minus offset in each coordinate direction, for a total of 2n function evaluations in the pattern. This case is depicted in Figure 5.3 for three coordinate dimensions.