Profit Factor calculations

[nidalzd]

hello guys , hope you are doing well. i wrote a code that i'm currently using to calculate profit factor for a specific magic number:

double Grosswin(){
int win=OrderProfit();
double grosswin=0;
int i= 0;
if (cnt>0)
for( i ;i<cnt ; i++)
if (OrderSelect(i, SELECT_BY_POS, MODE_HISTORY))
if (OrderMagicNumber()== magicnumber)
if(OrderProfit()>0){grosswin+=OrderProfit()+ OrderCommission()+OrderSwap();}
return(grosswin);
}

double Grossloss(){
double loss=OrderProfit();
double grossloss=0;
int i= 0;
if (cnt>0)
for( i ;i<cnt ; i++)
if (OrderSelect(i, SELECT_BY_POS, MODE_HISTORY))
if (OrderMagicNumber()== magicnumber)
if(OrderProfit()<0){grossloss+=OrderProfit()+ OrderCommission()+OrderSwap();}
return(grossloss);
}

double ProfitFactor(){
double proffactor=0;
if(Grossloss() != 0 || Grosswin() != 0){
proffactor=(Grosswin()/-Grossloss());
return(proffactor);
}
}

I want this code to be calculated on all the magic numbers available in the terminal , i have a code that retrieve all the magic number in the terminal but i could not use it in my code

double magic2(){
int totalOrders = OrdersHistoryTotal();
    int magicNumbers[];
    ArrayResize(magicNumbers, totalOrders);
    int magicNumberCount = 0;
    
    for (int i = 0; i < totalOrders; i++)
    {
        OrderSelect(i, SELECT_BY_POS, MODE_HISTORY);
        int currentMagicNumber = OrderMagicNumber();
        bool isUnique = true;
        
        for (int j = 0; j < magicNumberCount; j++)
        {
            if (magicNumbers[j] == currentMagicNumber)
            {
                isUnique = false;
                break;
            }
        }
        
        if (isUnique)
        {
            magicNumbers[magicNumberCount] = currentMagicNumber;
            magicNumberCount++;
        }
    }
    
    for ( i = 0; i < magicNumberCount; i++)
    {
        Print("Magic number: ", magicNumbers[i]);
    }

[William Roeder]

double Grosswin(){
int win=OrderProfit();

MT4: You can not use any Trade Functions until you first select an order.

[William Roeder]

if (cnt>0)
for( i ;i<cnt ; i++)

What is cnt? When is it set? Is it reset between your two function calls?