How to manage JPY pairs with parameters?

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Baptiste George  
Hi,


In previous version I use to do this way and it worked fine:

      /// --- Prepare data --- ///
                if (Symbol()=="AUDJPY" || Symbol()=="CADJPY" || Symbol()=="CHFJPY" || Symbol()=="EURJPY" || Symbol()=="GBPJPY" || Symbol()=="USDJPY" || Symbol()=="NZDJPY" )
               {double Modify_StopLoss_v1 = Modify_StopLoss*100;  double Pips_Marge_v1 = Pips_Marge*100;  double Check_Spread_v1=Check_Spread*100; double Modify_Entry_v1 = Modify_Entry*100; double Daily_Candle_Pips_v1 = Daily_Candle_Pips*100;}
              
         else  {Modify_StopLoss_v1 = Modify_StopLoss;  Pips_Marge_v1 = Pips_Marge;   Check_Spread_v1=Check_Spread;  Modify_Entry_v1 = Modify_Entry;  Daily_Candle_Pips_v1 = Daily_Candle_Pips;}
      
  


Now It says I have undeclared variables: so I did this way: I added "double"

      /// --- Prepare data --- ///
                if (Symbol()=="AUDJPY" || Symbol()=="CADJPY" || Symbol()=="CHFJPY" || Symbol()=="EURJPY" || Symbol()=="GBPJPY" || Symbol()=="USDJPY" || Symbol()=="NZDJPY" )
               {double Modify_StopLoss_v1 = Modify_StopLoss*100;  double Pips_Marge_v1 = Pips_Marge*100;  double Check_Spread_v1=Check_Spread*100; double Modify_Entry_v1 = Modify_Entry*100; double Daily_Candle_Pips_v1 = Daily_Candle_Pips*100;}
              
         else  {double Modify_StopLoss_v1 = Modify_StopLoss;  double Pips_Marge_v1 = Pips_Marge;   double Check_Spread_v1=Check_Spread;  double Modify_Entry_v1 = Modify_Entry;  double Daily_Candle_Pips_v1 = Daily_Candle_Pips;}
      
  


But it is not enough...as I call this variables in void_ontick()

Apparantly I must declare again this variables into parameters:

double Daily_Candle_Pips_v1 = 0.0045;
double Pips_Marge_v1 = 0.0005;




Here is my code:
//-----------------------------------------------------------------
// DAILY STRATEGY PRICE ACTION REVERSING... Pin bar?
//-----------------------------------------------------------------      
double Daily_High = iHigh(Symbol(),PERIOD_D1,0);    
  double Daily_Low = iLow(Symbol(),PERIOD_D1,0);
   double Daily_Open = iOpen(Symbol(),PERIOD_D1,0);
  

  
   // gestion du closing trade = closeTrades_Daily_Reversal
if (  Price_Action_Reversal && Hour()>=14 && Hour()<=22 && MathAbs(Bid-Daily_Open)<=Pips_Marge_v1 && Today_Profit_USD_News/(AccountBalance()-Today_Profit_USD_News)*100>=-Daily_Loss // If loss >= -0.5%
         &&  ( (TimeDayOfWeek(TimeCurrent()) == 2) || (TimeDayOfWeek(TimeCurrent()) == 3) || (TimeDayOfWeek(TimeCurrent()) == 4)  || (TimeDayOfWeek(TimeCurrent()) == 5 && TimeDay(TimeCurrent())<=7)  ) ) {
  
  
   // Long
     if ( countTrades_Long_USD_News_Today() == 0  && Bid>=Daily_Open && Daily_Open-Daily_Low>=Daily_Candle_Pips_v1  ){openLongTrade_Daily_Reversal();
      Print("Price Action Reversal LONG: Actual Drawdown = %",Today_Profit_USD_News/(AccountBalance()-Today_Profit_USD_News)*100);
     // Print("Print Day = ",TimeDay(OrderOpenTime()));
      }
      
    
  
   // Short  
     if ( countTrades_Short_USD_News_Today() == 0 && Bid<=Daily_Open && Daily_High-Daily_Open>=Daily_Candle_Pips_v1  ){openShortTrade_Daily_Reversal();
     Print("Price Action Reversal Short: Actual Drawdown = %",Today_Profit_USD_News/(AccountBalance()-Today_Profit_USD_News)*100);}
  
   }    
  
  
  double Daily_Open_Comment = iOpen(Symbol(),PERIOD_D1,0);              
  Comment("|--|<  Daily Opened Price = ",Daily_Candle_Pips_v1,"  >|--|<  Marge_Pips = ",Pips_Marge_v1,"  >|--|<  Today_Profit = €",Today_Profit_USD_News,"  >|--|<  DrawDown = %",Today_Profit_USD_News/(AccountBalance()-Today_Profit_USD_News)*100);
  


But if I backtest with GbbUsd it works...

But with JPY pairs... it doesn't convert my parameter with 2 zero less ?



Please help.


Regards
Marco vd Heijden  

You could first declare the variables and then assign their values.

double Modify_StopLoss_v1,Pips_Marge_v1,Check_Spread_v1,Modify_Entry_v1,Daily_Candle_Pips_v1;



      /// --- Prepare data --- ///
                if (Symbol()=="AUDJPY" || Symbol()=="CADJPY" || Symbol()=="CHFJPY" || Symbol()=="EURJPY" || Symbol()=="GBPJPY" || Symbol()=="USDJPY" || Symbol()=="NZDJPY" )
               {Modify_StopLoss_v1 = Modify_StopLoss*100;  Pips_Marge_v1 = Pips_Marge*100;  Check_Spread_v1=Check_Spread*100; Modify_Entry_v1 = Modify_Entry*100; Daily_Candle_Pips_v1 = Daily_Candle_Pips*100;}
              
         else  {Modify_StopLoss_v1 = Modify_StopLoss;  Pips_Marge_v1 = Pips_Marge;   Check_Spread_v1=Check_Spread;  Modify_Entry_v1 = Modify_Entry;  Daily_Candle_Pips_v1 = Daily_Candle_Pips;}

Also note that you can find these JPY pairs and others like GOLD and etc.. by simply analyzing:

Digits();

SYMBOL_DIGITS

Digits after a decimal point

int



So there is no need to hard code all the symbol names into the code and a simple multiplier related to digits can be a lot easier and will also work for symbols that you didn't include in your code.

Understanding functions in MQL5 Category Theory in MQL5 Developing a Replay System
William Roeder  
  1. Frenchytrader: Now It says I have undeclared variables: so I did this way: I added "double"
          /// --- Prepare data --- ///
                    if (Symbol()=="AUDJPY" || Symbol()=="CADJPY" || Symbol()=="CHFJPY" || Symbol()=="EURJPY" || Symbol()=="GBPJPY" || Symbol()=="USDJPY" || Symbol()=="NZDJPY" )
                   {double Modify_StopLoss_v1 = Modify_StopLoss*100;  double Pips_Marge_v1 = Pips_Marge*100;  double Check_Spread_v1=Check_Spread*100; double Modify_Entry_v1 = Modify_Entry*100; double Daily_Candle_Pips_v1 = Daily_Candle_Pips*100;}
                  
             else  {double Modify_StopLoss_v1 = Modify_StopLoss;  double Pips_Marge_v1 = Pips_Marge;   double Check_Spread_v1=Check_Spread;  double Modify_Entry_v1 = Modify_Entry;  double Daily_Candle_Pips_v1 = Daily_Candle_Pips;}  
    But with JPY pairs... it doesn't convert my parameter with 2 zero less ?
    Using strict mode, variables declared inside the braces "{}" are not visible after the closing brace. Thus your error and #1's suggestion.
  2.  You are not adjusting SL, TP, and slippage for 4/5 digit brokers and for JPY pairs.
          /// --- Prepare data --- ///
    double   pip          = StringFind(_Symbol,"JPY") < 0 ? 0.01 : 0.0001;
    int      pipDigits    = (int)MathLog10(pip/_Point);
    int      pipsToPoints = int(pip / _Point);
    int      slippage     = 3 * pipsToPoints;

    double Modify_StopLoss_v1   = Modify_StopLoss   * pipsToPoints; // \   Or just drop all these
    double Pips_Marge_v1        = Pips_Marge        * pipsToPoints; //  \  variables, and just use
    double Check_Spread_v1      = Check_Spread      * pipsToPoints; //   > Check_Spread * pip, etc.,
    double Modify_Entry_v1      = Modify_Entry      * pipsToPoints; //  /  instead of
    double Daily_Candle_Pips_v1 = Daily_Candle_Pips * pipsToPoints; // /   Check_Spread_v1 * _Point
  3. Marco vd Heijden: Also note that you can find these JPY pairs and others like GOLD and etc.. by simply analyzing:
    The term pip is only defined for currencies, not metals. What is a TICK? - MQL4 forum  Analyzing digits or just looking for JPY will not work for exotics like USDMXN/USDZAR where the spread is beyond 300 pips. For that I've been trying
    double dvpl = DeltaValuePerLot();
    double pip  = 0.0001;
    while(dvpl * pip < 5) pip *= 10;
    Which gives the same results for most currencies, adjusts for the exotics, and should handle metals, i.e. a pip is worth about ¤10 (account currency.)
Understanding functions in MQL5 Category Theory in MQL5 Developing a Replay System
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