Method mutate

pattern/vector/__init__.py:2457–2460

Must be implemented in a subclass, returns a new candidate.

(self, candidate, d=0.1)

        return None
        
    def mutate(self, candidate, d=0.1):
        """ Must be implemented in a subclass, returns a new candidate.
        """
        return None or candidate
        
    def update(self, top=0.7, crossover=0.5, mutation=0.1, d=0.9):
        """ Updates the population by selecting the top fittest candidates,