Dakota Reference Manual: scales

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scales

Characteristic values to scale each nonlinear constraint

## Specification

Alias: nonlinear_inequality_scales

Argument(s): REALLIST

Default: 1.0 (no scaling)

## Description

Each real value in `scales` is a nonzero characteristic value to be used in scaling each nonlinear inequality (equality) constraint. They only have effect when the associated method specifies `scaling`.

This keyword is required for `scale_types` of `'value'` and optional for `'log'`. When specified in conjunction with log, scale values are applied prior to the logarithm, to permit log scaling of strictly negative response functions.

If a single scale value is specified it will apply to all of the nonlinear inequality (equality) constraints. Otherwise a value must be specified for each nonlinear inequality (equality) constraint.

Usage Tips:

When `scales` are specified, but not `scale_types`, the scaling type is assumed to be 'value' for this set of nonlinear inequality (equality) constraints.

Use scale values of 1.0 to selectively avoid scaling a subset of response functions.

See the scaling information under specific methods, e.g., method-*-scaling for details on how to use this keyword.