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Dakota Reference Manual
Version 6.16
Explore and Predict with Confidence
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Select a mutation type
Alias: none
Argument(s): none
Default: offset_normal
Child Keywords:
| Required/Optional | Description of Group | Dakota Keyword | Dakota Keyword Description | |
|---|---|---|---|---|
| Required (Choose One) | Mutation Type (Group 1) | 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 | ||
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.