Hello I am new to C++, I have this program which i take an input file and i have to find the average and standard deviation of the numbers in the file. I have part of the program completed but i don't know where to go from there. can someone please help me?
#include <fstream>
#include <iostream>
#include <cstdlib>
#include <cmath>
int main()
{
using namespace std;
ifstream in_stream;
ofstream out_stream;
in_stream.open("infile.txt");
if(in_stream.fail())
{
cout << "Input file opening failed.\n";
exit(1);
}
outstream.open("outfile.txt");
if (out_stream.fail())
{
cout << "Output file opening failed.\n";
exit(1);
}
double next,sum = 0;
double average;
double s_dev = 0;
int count = 0;
while(in_stream >> next)
{
sum = sum + next;
count++;
}
average = sum/count;