Package Bio :: Package GA :: Package Mutation :: Module General :: Class SafeFitnessMutation

Class SafeFitnessMutation

object --+
         |
        SafeFitnessMutation

Perform mutations, but do not allow decreases in organism fitness.

This doesn't actually do any mutation work, but just checks that newly create organisms do not have lower fitnesses.

Instance Methods

[hide private]

__init__(self, actual_mutation, accept_less=0.0)
Initialize to do safe mutations

source code

mutate(self, org)
Perform safe mutation of the specified organism.

source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, actual_mutation, accept_less=0.0)
(Constructor)

source code

Initialize to do safe mutations

Arguments:

o actual_mutation - A Mutation class which actually implements mutation. functionality.

o accept_less - A probability to accept mutations which generate lower fitness. This allows you to accept some crossovers which reduce fitness, but not all of them.

Overrides: object.__init__

Class SafeFitnessMutation

__init__(self, actual_mutation, accept_less=0.0) (Constructor)

init(self, actual_mutation, accept_less=0.0)
(Constructor)