C ++中的negative_binomial_distribution与示例
在本教程中，我们将讨论一个程序，以了解C++中的negative_binomial_distribution。
此函数遵循负二项式离散分布，并根据此随机分布生成整数。
示例
#include <bits/stdc++.h>
using namespace std;
int main() {
//设置实验次数
const int exps = 10000;
const int numberstars = 100;
default_random_engine generator;
negative_binomial_distribution<int> distribution(4, 0.5);
int p[10] = {};
for (int i = 0; i < exps; ++i) {
int counting = distribution(generator);
if (counting < 10)
++p[counting];
}
cout << "Negative binomial distribution with "<< "( k = 4, p = 0.5 ) :" << endl;
//从数组中打印序列
for (int i = 0; i < 10; ++i)
cout << i << ": " << string(p[i] * numberstars / exps, '*') << endl;
return 0;
}输出结果
Negative binomial distribution with ( k = 4, p = 0.5 ) : 0: ***** 1: ************ 2: **************** 3: *************** 4: ************* 5: ********** 6: ******** 7: ***** 8: *** 9: **