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Komut dosyasını beğendiniz mi? MetaTrader 5 terminalinde deneyin
Maximum Percentage of Equity Risk - MetaTrader 5 için kütüphane
- Görüntülemeler:
- 7537
- Derecelendirme:
- Yayınlandı:
- 2014.08.01 10:35
- Güncellendi:
- 2016.11.22 07:32
- Bu koda dayalı bir robota veya göstergeye mi ihtiyacınız var? Freelance üzerinden sipariş edin Freelance'e git
This code allows you to set a maximum percentage of equity risk.
It checks if asked buy/sell lots are fitting the risk. If not, lots are automatically adjusted to fit the risk that was set.
Code:
bool UseMaximumPercentageRisk=true; double MaximumPercentageRisk=25; #include <Trade\SymbolInfo.mqh> //+------------------------------------------------------------------+ //| GetLotSize RPTrade | //+------------------------------------------------------------------+ double GetLotSize(double lotsize) { //--- Gets pair specs CSymbolInfo symInfo; int digits_bn=symInfo.Digits(); double points_bn=symInfo.Point(); string symbol_bn=_Symbol; //--- adjust lot int tmpdecimal=1; double old_lot=lotsize; //--- if((NormalizeDouble(AccountInfoDouble(ACCOUNT_FREEMARGIN)*(MaximumPercentageRisk/100)/1000.0,tmpdecimal)<lotsize) && UseMaximumPercentageRisk) //is lot fitting risk ? { lotsize=NormalizeDouble(AccountInfoDouble(ACCOUNT_FREEMARGIN)*(MaximumPercentageRisk/100)/1000.0,tmpdecimal); //Calculates new Lotsize if(lotsize<SymbolInfoDouble(symbol_bn,SYMBOL_VOLUME_MIN)) //is LotSize fitting minimum broker LotSize ? { lotsize=SymbolInfoDouble(symbol_bn,SYMBOL_VOLUME_MIN); //No! Setting LotSize to minimum's broker LS Print(_Symbol," Lot adjusted from ",old_lot," to minimum size allowed by the server of ",lotsize); } else { Print(_Symbol," Lot adjusted from ",old_lot," to ",lotsize," to comply with Maximum Risk condition. Each trade can risk only ",MaximumPercentageRisk,"% of free margin."); //Yes! if(MathAbs(lotsize/SymbolInfoDouble(symbol_bn,SYMBOL_VOLUME_STEP)-MathRound(lotsize/SymbolInfoDouble(symbol_bn,SYMBOL_VOLUME_STEP)))>1.0E-10) //Is LotSize fitting Broker's allowed step ? { lotsize=SymbolInfoDouble(symbol_bn,SYMBOL_VOLUME_STEP)*NormalizeDouble(lotsize/SymbolInfoDouble(symbol_bn,SYMBOL_VOLUME_STEP),0); //NO! recalculates LotSize. Print("M-",_Symbol," Warning: Your calculated percentage at risk lot size of was not a multiple of minimal step",SymbolInfoDouble(symbol_bn,SYMBOL_VOLUME_STEP),". Lot size changed to",lotsize); } } } return(lotsize); }
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