linear_equality_scales
Characteristic values to scale linear equalities
Topics
linear_constraints
Specification
Alias: None
Arguments: REALLIST
Default: vector values = 1 . (no scaling)
Description
Each real value in linear_equality_scales
is a nonzero
characteristic value to be used in scaling each constraint. They only
have effect when the associated method specifies scaling
.
This keyword is required for
linear_equality_scale_types
of ‘value’ and optional for ‘auto’.
If a single real value is specified it will apply to all linear equality constraints. Otherwise the number of values should be equal to the number of linear equalities.
Scaling for linear constraints is applied after any continuous variable scaling.
For example, for variable scaling on continuous design variables x:
we have the following system for linear inequality constraints
and user-specified or automatically computed scaling multipliers are appplied to this final transformed system, which accounts for continuous design variable scaling. When automatic scaling is in use for linear constraints they are linearly scaled by a computed characteristic value, but not affinely to [0,1].
See the scaling information under specific methods, e.g., method-*-scaling
for details on how to use this keyword.