What is wrong with my Code?

[JackViper]

I am trying to get Linear Regression

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main()
{
double x[7] = { 1.5, 2.4, 3.2, 4.8, 5.0, 7.0, 8.43 };
double y[7] = { 3.5, 5.3, 7.7, 6.2, 11.0, 9.5, 10.27 };

Maths::Regression::Linear A(7, x, y);

cout << " Slope = " << A.getSlope() << endl;
cout << "Intercept = " << A.getIntercept() << endl << endl;

cout << "Regression coefficient = " << A.getCoefficient() << endl;

cout << endl << "Regression line values" << endl << endl;
for (double i = 0.0; i <= 3; i += 0.6)
{
cout << "x = " << setw(3) << i << " y = " << A.getValue(i);
cout << endl;
}
return 0;

}

[Zhuge]

Why do you think there is something wrong with it? Do you get errors or something?

[fluppe]

found your example (nearly)

http://www.codecogs.com/library/maths/approximation/regression/linear.php

small differences in the includes ... is that the problem ??

maybe try this one:
http://yogeshpateliitp.blogspot.de/2013/03/linear-regression-c-code-to-compute.html