Expert Advisor - Percentage of balance

New comment
 
Could someone please help me with some language to make my Expert Advisor trade a percentage of my balance? For example, I would like each trade, instead of being x number of lots, to be 10% of my current balance. Does anyone know how to do this? The more explicit the details the more helpful it would be.

thanks.
 
See the news Useful hints for the Championship participants
 
golden188:
Could someone please help me with some language to make my Expert Advisor trade a percentage of my balance? For example, I would like each trade, instead of being x number of lots, to be 10% of my current balance. Does anyone know how to do this? The more explicit the details the more helpful it would be.

thanks.
I use the following function:

extern double Lots = 0.1;
extern double MinLot = 0.1;
extern double MaxLot = 5.0;
extern int LotPrec = 1;
extern bool DynamicLot = false;
extern double LotStep = 0.1;
extern double BalanceStep = 500;
 
double GetLots() 
{
  double lots = Lots;
 
  if (DynamicLot)
  {
    lots = NormalizeDouble(LotStep*AccountBalance()/BalanceStep, LotPrec);  
  }
 
  lots = MathMax(lots, MinLot);
  lots = MathMin(lots, MaxLot);
  return (lots);
}
 

this would be another way:


AccountIsMini = true; // Change to False if trading a 100k/regular account

if mm <> 0 then
{
lotMM = Ceil(Balance * risk / 10000) / 10;

if lotMM < 0.1 then lotMM = lots;

if lotMM > 1 then lotMM = Ceil(lotMM);

if AccountIsMini then lotMM = lotMM * 10;

if lotMM > 100 then lotMM = 100;
}
else {
lotMM = Lots; // Change mm to 0 if you want the Lots parameter to be in effect
};

New comment