带示例在 C++ 中负二项式分布
在本教程中,我们将讨论一个程序来了解 C++ 中的负二项式分布。
此函数遵循负二项式离散分布,并且根据此随机分布生成整数。
示例
#include <bits/stdc++.h>
using namespace std;
int main() {
//setting number of experiments
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;
//printing the sequence from the array
for (int i = 0; i < 10; ++i)
cout << i << ": " << string(p[i] * numberstars / exps, '*') << endl;
return 0;
}结果
Negative binomial distribution with ( k = 4, p = 0.5 ) : 0: ***** 1: ************ 2: **************** 3: *************** 4: ************* 5: ********** 6: ******** 7: ***** 8: *** 9: **
广告
数据结构
网络
RDBMS
操作系统
Java
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP