flipmutator.cpp

来自「我自己写的一个用于图编码的遗传算法」· C++ 代码 · 共 42 行

#include "FlipMutator.h"
#include "GraphGenome.h"
#include "MyRandom.h"
#include "GAException.h"

#include <iostream>
using std::cout;
using std::endl;

FlipMutator::FlipMutator() 
{
	REGISTER_GENOME(GraphGenome); 
}

void FlipMutator::applyMutate(Genome* genome,double mutateRate)
{
	if(!isGenomeReg(genome->getClass().getName()))
	{
		throw GAException("FlipMutator不能应用于所有的编码类型");
	}
	else if(mutateRate>=1) 
	{
		throw GAException("FlipMutator变异率不能超过1");
	}
	else if(mutateRate<=0) 
	{
		throw GAException("FlipMutator变异率不能小于等于0");
	}
	else
	{
		cout<<"变异率："<<mutateRate<<endl;

		for(int i=0;i<genome->size();i++)
		{
			if(MyRandom::randomDouble()<mutateRate)
			{
				cout<<"第"<<i<<"位进行翻转变异（flip）操作"<<endl;
				genome->random(i);
			}
		}
	}
}