c++ - 如何使用boost weibull分布库进行随机数生成？

Question

我想在 C++ 中使用 weibull 分布生成随机数。谁能给我一些提示？

谢谢

Answer 1

我认为这可以回答您的问题:c++ References

// weibull_distribution
#include <iostream>
#include <random>

int main()
{
  const int nrolls=10000;  // number of experiments
  const int nstars=100;    // maximum number of stars to distribute

  std::default_random_engine generator;
  std::weibull_distribution<double> distribution(2.0,4.0);

  int p[10]={};

  for (int i=0; i<nrolls; ++i) {
    double number = distribution(generator);
    if (number<10) ++p[int(number)];
  }

  std::cout << "weibull_distribution (2.0,4.0):" << std::endl;

  for (int i=0; i<10; ++i) {
    std::cout << i << "-" << (i+1) << ": ";
    std::cout << std::string(p[i]*nstars/nrolls,'*') << std::endl;
  }

  return 0;
}

可能的输出:weibull_distribution (2.0,4.0):

0-1: ******
1-2: ***************
2-3: *********************
3-4: ********************
4-5: ***************
5-6: ***********
6-7: *****
7-8: **
8-9: *
9-10: