随机变量生成算法入门——Wichmann-Hill算法
本文共 682 字，大约阅读时间需要 2 分钟。
Wichmann-Hill算法
1、算法介绍
为了得到长周期的随机数发生器，可将两个周期相差很小的波形序列相加，
如定义3个随机数发生器，它们都是全周期的
则它们合成输出 
等价的乘性发生器中a=16555425264690，m=2.7817*1013。 2、C++代码实现
includeint main(){ float x[10001],y[10001],z[10001],u[10001]; x[0]=1; y[0]=2; z[0]=3; /*种子可取任意整数*/ for(int i=0;i<10000;i++) { x[i+1]=fmod(171*x[i],30269); y[i+1]=fmod(170*y[i],30307); z[i+1]=fmod(172*z[i],30323); u[i+1]=fmod(x[i+1]/30269+y[i+1]/30307+z[i+1]/30323,1); } FILE *fp; fp=fopen("/*输入自定义路径*/","w"); for(int i=1;i<=10000;i++) { fprintf(fp,"%f ",u[i]); } fclose(fp); return 0;}
3、使用matlab画直方图
u=[…(从C++程序生成文件中导入数据)]histogram(u)
4、生成直方图预览
转载地址：http://wpdg.baihongyu.com/
你可能感兴趣的文章
NN&DL4.1 Deep L-layer neural network简介
查看>>
NN&DL4.3 Getting your matrix dimensions right
查看>>
NN&DL4.7 Parameters vs Hyperparameters
查看>>
NN&DL4.8 What does this have to do with the brain?
查看>>
nnU-Net 终极指南
查看>>
No 'Access-Control-Allow-Origin' header is present on the requested resource.
查看>>
No 'Access-Control-Allow-Origin' header is present on the requested resource.
查看>>
NO 157 去掉禅道访问地址中的zentao
查看>>
no available service ‘default‘ found, please make sure registry config corre seata
查看>>
No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
查看>>
no connection could be made because the target machine actively refused it.问题解决
查看>>
No Datastore Session bound to thread, and configuration does not allow creation of non-transactional
查看>>
No fallbackFactory instance of type class com.ruoyi---SpringCloud Alibaba_若依微服务框架改造---工作笔记005
查看>>
No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalanc
查看>>
No mapping found for HTTP request with URI [/...] in DispatcherServlet with name ...的解决方法
查看>>
No mapping found for HTTP request with URI [/logout.do] in DispatcherServlet with name 'springmvc'
查看>>
No module named 'crispy_forms'等使用pycharm开发
查看>>
No module named cv2
查看>>
No module named tensorboard.main在安装tensorboardX的时候遇到的问题
查看>>
No module named ‘MySQLdb‘错误解决No module named ‘MySQLdb‘错误解决
查看>>