Calcul of the Integral (very important)
double Integrate (double &x[], double &y[], int ind)
{
double sum = 0;
for (int i = 0; i < ind -1; i++)
sum+= (x[i+1]-x[i]) * (y[i+1]+y[i]) *0.5;
return(sum);
}
Variance
double Variance(double& Data[], int Per){double sum, ssum;
for (int i=0; i<Per; i++) { sum += Data[i]; ssum += MathPow(Data[i],2); } return((ssum*Per - sum*sum)/(Per*(Per-1)));}
Comments
Variance
double Variance(double& Data[], int Per)
{
double sum, ssum;
for (int i=0; i<Per; i++)
{
sum += Data[i];
ssum += MathPow(Data[i],2);
}
return((ssum*Per - sum*sum)/(Per*(Per-1)));
}