hmw_2_3.cpp

/*

Homework 2_3
Arian Owji
604649619

*/

#include <iostream>
#include <string>
#include <sstream>
#include <cmath>

using namespace std;

int main()
{
    char response = 'y';
    double x;
    int count = 0;
    double sum = 0;
    double sumSquares = 0;
    
    while (response == 'y') {
        std::cout << "Enter a list of values <of type double>: ";
        
        string line;
        getline(cin, line);
        stringstream ss(line);
        
        while (!ss.eof()) {
            ss >> x;
            
            count++;
            sum += x;
            sumSquares += (pow(x, 2));
        }
        
        double mean = sum / count;
        double deviation = (sqrt((sumSquares - ((pow(sum, 2)) / count)) / (count - 1)));
        
        std::cout << "Number = " << count << endl;
        std::cout << "Mean = " << mean << endl;
        std::cout << "Deviation = " << deviation << endl;
        
        std::cout << endl;
        std::cout << "Continue? <y/n> ";
        std::cin >> response;
        std::cout << endl;
        std::cin.get();
        
        count = 0;
        sum = 0;
        sumSquares = 0;
    }
    return 0;
}