mutation_type

Select a mutation type

Specification

  • Alias: None

  • Arguments: None

  • Default: offset_normal

Child Keywords:

Required/Optional

Description of Group

Dakota Keyword

Dakota Keyword Description

Required (Choose One)

Mutation Type

replace_uniform

Replace coordinate with randomly generated value

offset_normal

Set mutation offset to use a normal distribution

offset_cauchy

Use a Cauchy distribution for the mutation offset

offset_uniform

Set mutation offset to use a uniform distribution

Optional

non_adaptive

Disable self-adaptive mutation

Description

The mutation_type controls what approach is employed in randomly modifying continuous design variables within the EA population. Each of the mutation methods generates coordinate-wise changes to individuals, usually by adding a random variable to a given coordinate value (an offset_* mutation), but also by replacing a given coordinate value with a random variable (a replace_* mutation).

Discrete design variables are always mutated using the offset_uniform method.