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Dakota Reference Manual
Version 6.15
Explore and Predict with Confidence
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Controls how close to the boundary of the feasible region the algorithm is allowed to move
Alias: none
Argument(s): REAL
Default: Merit function dependent: 0.8 (el_bakry), 0.99995 (argaez_tapia), 0.95 (van_shanno)
The steplength_to_boundary
specification is a parameter (between 0 and 1) that controls how close to the boundary of the feasible region the algorithm is allowed to move. A value of 1 means that the algorithm is allowed to take steps that may reach the boundary of the feasible region. If the user wishes to maintain strict feasibility of the design parameters this value should be less than 1. Default values are .8, .99995, and .95 for the el_bakry
, argaez_tapia
, and van_shanno
merit functions, respectively.