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1、C语言遗传算法代码以下为遗传算法的源代码，计算一元代函数的代码和二元函数的代码以+为分割线分割开来，请自行选择适合的代码，使用时请略看完代码的注释，在需要更改的地方更改为自己需要的代码。+一元函数代码+#include #include#include#include#define POPSIZE 1000#define maximization 1#define minimization 2#define cmax 100#define cmin 0#define length1 20#define chromlength length1 /染色体长度/注意，你是求最大值还是求最小值int 。
2、functionmode=minimization;/变量的上下限的修改开始 float min_x1=-2;/变量的下界 float max_x1=-1;/变量的上界/变量的上下限的修改结束 int popsize; /种群大小int maxgeneration; /最大世代数double pc; /交叉率double pm; /变异率struct individualchar chromchromlength+1;double value; double fitness; /适应度;int generation; /世代数int best_index;int worst_index;str。
3、uct individual bestindividual; /最佳个体struct individual worstindividual; /最差个体struct individual currentbest;struct individual populationPOPSIZE;/函数声明 void generateinitialpopulation(); void generatenextpopulation();void evaluatepopulation();long decodechromosome(char *,int,int);void calculateobjectvalu。
4、e();void calculatefitnessvalue();void findbestandworstindividual();void performevolution();void selectoperator();void crossoveroperator();void mutationoperator();void input();void outputtextreport();void generateinitialpopulation( ) /种群初始化int i,j;for (i=0;i0.0)temp=cmin+populationi.value;elsetemp=0.。
5、0;else if (functionmode=minimization)if(populationi.valuebestindividual.fitness)bestindividual=populationi;best_index=i;else if (populationi.fitness=currentbest.fitness)currentbest=bestindividual;void performevolution() /演示评价结果if (bestindividual.fitnesscurrentbest.fitness)currentbest=populationbest_。
6、index;elsepopulationworst_index=currentbest;void selectoperator() /比例选择算法int i,index;double p,sum=0.0;double cfitnessPOPSIZE;struct individual newpopulationPOPSIZE;for(i=0;icfitnessindex)index+;newpopulationi=populationindex;for(i=0;i#include#include#include#define POPSIZE 500#define maximization 1#。
7、define minimization 2#define cmax 100#define cmin 0#define length1 20#define length2 20#define chromlength length1+length2 /染色体长度/-求最大还是最小值int functionmode=maximization;/-/-变量上下界float min_x1=0;float max_x1=3;float min_x2=1;float max_x2=5;/-int popsize; /种群大小int maxgeneration; /最大世代数double pc; /交叉率do。
8、uble pm; /变异率struct individualchar chromchromlength+1;double value; double fitness; /适应度;int generation; /世代数int best_index;int worst_index;struct individual bestindividual; /最佳个体struct individual worstindividual; /最差个体struct individual currentbest;struct individual populationPOPSIZE;/函数声明 void gene。
9、rateinitialpopulation(); void generatenextpopulation();void evaluatepopulation();long decodechromosome(char *,int,int);void calculateobjectvalue();void calculatefitnessvalue();void findbestandworstindividual();void performevolution();void selectoperator();void crossoveroperator();void mutationoperat。
10、or();void input();void outputtextreport();void generateinitialpopulation( ) /种群初始化int i,j;for (i=0;i0.0)temp=cmin+populationi.value;elsetemp=0.0;else if (functionmode=minimization)if(populationi.valuebestindividual.fitness)bestindividual=populationi;best_index=i;else if (populationi.fitness=currentb。
11、est.fitness)currentbest=bestindividual;void performevolution() /演示评价结果if (bestindividual.fitnesscurrentbest.fitness)currentbest=populationbest_index;elsepopulationworst_index=currentbest;void selectoperator() /比例选择算法int i,index;double p,sum=0.0;double cfitnessPOPSIZE;struct individual newpopulationP。
12、OPSIZE;for(i=0;icfitnessindex)index+;newpopulationi=populationindex;for(i=0;ipopsize; i+)populationi=newpopulationi;void crossoveroperator() /交叉算法int i,j;int indexPOPSIZE;int point,temp;double p;char ch;for (i=0;ipopsize;i+)indexi=i;for (i=0;ipopsize;i+)point=rand()%(popsize-i);temp=indexi;indexi=in。
13、dexpoint+i;indexpoint+i=temp;for (i=0;ipopsize-1;i+=2)p=rand()%1000/1000.0;if (ppc)point=rand()%(chromlength-1)+1;for (j=point; jchromlength;j+)ch=populationindexi.chromj;populationindexi.chromj=populationindexi+1.chromj;populationindexi+1.chromj=ch;void mutationoperator() /变异操作int i,j;double p;for 。
14、(i=0;ipopsize;i+)for(j=0;jchromlength;j+)p=rand()%1000/1000.0;if (ppm)populationi.chromj=(populationi.chromj=0)?1:0;void input() /数据输入 /printf(初始化全局变量:n);/printf( 种群大小(50-500)：);/scanf(%d, &popsize);popsize=200;if(popsize%2) != 0)/printf( 种群大小已设置为偶数n);popsize+;/printf( 最大世代数(100-300)：);/scanf(%d, &m。
15、axgeneration);maxgeneration=200;/printf( 交叉率(0.2-0.99)：);/scanf(%f, &pc);pc=0.9;/printf( 变异率(0.001-0.1)：);/scanf(%f, &pm);pm=0.003;void outputtextreport()/数据输出int i;double sum;double average;sum=0.0;for(i=0;ipopsize;i+)sum+=populationi.value;average=sum/popsize;printf(当前世代=%dn当前世代平均函数值=%fn当前世代最优函数值=。
16、%fn,generation,average,populationbest_index.value);void main() /主函数 int i;long temp1,temp2;double x1,x2;generation=0;input();generateinitialpopulation();evaluatepopulation();while(generationmaxgeneration)generation+;generatenextpopulation();evaluatepopulation();performevolution();outputtextreport();。
17、printf(n);printf( 统计结果: );printf(n);/printf(最大函数值等于：%fn,currentbest.fitness);printf(其染色体编码为：);for (i=0;ichromlength;i+)printf(%c,currentbest.chromi);printf(n); temp1=decodechromosome(currentbest.chrom,0,length1);temp2=decodechromosome(currentbest.chrom,length1,length2);x1=(max_x1-min_x1)*temp1/(1024*1024-1)+min_x1;x2=(max_x2-min_x2)*temp2/(1024*1024-1)+min_x2;printf(x=%lf,y=%lfn,x1,x2);/-修改函数printf(最大值=%fn,x1*x1+sin(x1*x2)-x2*x2);/。
