Tutte le domande dei nuovi arrivati su MQL4 e MQL5, aiuto e discussione su algoritmi e codici - pagina 276

 
Vladimir Pastushak:

ZeroMemory (...) inizializza l'array di tipo stringa con il valore NULL


Buon pomeriggio. Ecco la domanda. Scritto un EA, attaccato un trailing stop ad esso, compilato.......... non funziona:))))). Ho riavviato il mio computer, ho modificato il codice sorgente e funziona. Ho iniziato a regolarlo tramite i parametri di input, ancora una volta non funziona, o meglio è cambiato una volta, ed è tutto.......... Può darsi che il vento abbia un problema o che io abbia di nuovo fatto un casino da qualche parte. Sto allegando il codice sorgente.

//+------------------------------------------------------------------+
//|                                                        test8.mq4 |
//|                        Copyright 2017, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2017, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict
//-------------------------------------------------------------------
extern double lots            = 0.1;
extern int    TakeProfit      = 100;
extern int    StopLoss        = 50;
extern int    Magic           = 777; 
extern int    Slippage        = 3;

//-------------------------------------------------------------------
extern string TMA             = "Параметры индикатора TMA";
extern string TimeFrame       = "current time frame";
extern int    HalfLength      = 56; 
extern int    Price           = PRICE_CLOSE;
extern double ATRMultiplier   = 2.0;
extern int    ATRPeriod       = 100;
extern bool   Interpolate     = true;
extern int    TrailingStop    = 50; 
extern int    TrailingStep    = 20;
int    timeprev        = 0;
//-------------------------------------------------------------------
double PriceHigh, PriceLow, SL ,TP;
int ticket;


//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
   if (Digits == 3 || Digits == 5);
   {
       TakeProfit   *=10;
       Slippage     *=10;
       TrailingStop *=10;
       TrailingStep *=10;
     
       
   }  
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
    if (timeprev == Time [0])return;
         timeprev = Time [0];
  
    PriceHigh = iCustom(NULL, 0, "TMA_Fair", TimeFrame, HalfLength, Price, ATRMultiplier, ATRPeriod, Interpolate, 1, 0);  
    PriceLow  = iCustom(NULL, 0, "TMA_Fair", TimeFrame, HalfLength, Price, ATRMultiplier, ATRPeriod, Interpolate, 2, 0);  
    
    if (CountSell() == 0 && Bid >= PriceHigh)
    {
        ticket = OrderSend(Symbol(), OP_SELL, lots, Bid, Slippage, 0, 0, "TMA robot", Magic, 0, Red);  
        if (ticket > 0)
        {
            TP = NormalizeDouble(Bid - TakeProfit*Point, Digits);
            SL = NormalizeDouble(Bid + StopLoss*Point, Digits);
            if (OrderSelect(ticket, SELECT_BY_TICKET)) 
                if(!OrderModify(ticket, OrderOpenPrice(), SL, TP, 0));
                    Print("Ошибк амодификации ордера на продажу!");
        } else Print("Ошибка открытия ордера на продаду!"); 
    }
  

    if (CountBuy() == 0 && Ask <= PriceLow)
    
      {
         ticket = OrderSend(Symbol(), OP_BUY, lots, Ask, Slippage, 0, 0, "TMA robot", Magic, 0, Blue);  
         if (ticket > 0)
           { 
                SL = NormalizeDouble(Ask - StopLoss*Point, Digits);
                TP = NormalizeDouble(Ask + TakeProfit*Point, Digits);
                if (OrderSelect(ticket, SELECT_BY_TICKET)) 
                if(!OrderModify(ticket, OrderOpenPrice(), SL, TP, 0));
                  Print ("Ошибка модификации ордера на покупку!");
           }      else Print("Ошибка открытия ордера на покупкку!");
      }
     
     Trailing();    
    }
//+------------------------------------------------------------------+
void Trailing()
{
    for (int i=OrdersTotal() -1; i>=0; i--)
    {
      if (OrderSelect (i, SELECT_BY_POS, MODE_TRADES))
      {
         if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic)
         {
            if (OrderType() == OP_BUY)
            {
               if (Bid - OrderOpenPrice() > TrailingStop*Point || OrderStopLoss() == 0)
               {
                   if (OrderStopLoss() < Bid-(TrailingStop+TrailingStep)*Point || OrderStopLoss() == 0)
                   {
                      if (!OrderModify(OrderTicket(), OrderOpenPrice(), NormalizeDouble (Bid-TrailingStop*Point, Digits), 0, 0))
                         Print ("Ошибка модификации ордера на покупку!");
                   } 
               }
            }
            
            if (OrderType() == OP_SELL)
            {
                if (OrderOpenPrice() - Ask > TrailingStop*Point || OrderStopLoss() == 0)
                {
                    if (OrderStopLoss() > Ask + (TrailingStop+TrailingStep)*Point || OrderStopLoss() == 0)
                    {
                        if (!OrderModify(OrderTicket(), OrderOpenPrice(), NormalizeDouble( Ask + TrailingStop*Point, Digits), 0, 0))
                             Print ("Ошибка модификации ордера на родажу!"); 
                    }
                    
                }
            }
         
         }
      }
    }
}
  
//+------------------------------------------------------------------+


int CountSell() 
  {
    int count = 0;
    for (int trade = OrdersTotal()-1; trade>=0; trade--)
    {
       if (OrderSelect(trade, SELECT_BY_POS, MODE_TRADES))
       {
          if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == OP_SELL)
             count++;
       }   
    }
    return(count);
  }
//-----------------------------------------------------------------------------------------------  
  int CountBuy() 
  {
    int count = 0;

    for (int trade = OrdersTotal()-1; trade>=0; trade--)
    {
       if (OrderSelect(trade, SELECT_BY_POS, MODE_TRADES))
       {
          if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == OP_BUY)
             count++;
       }   
    }
    return(count);
  }
//-----------------------------------------------------------------------------------------------  
  
       
       
  
 

Buon pomeriggio. Lamia domanda è la seguente:ho scritto un EA, gli ho attaccato un trailing stop, compiled.......... non funziona: ))))). Più precisamente il trailing stop funziona, ma il profitto precedentemente prescritto non funziona, qual è la ragione?

Как самому создать советника или индикатор - Алгоритмический трейдинг, торговые роботы - Справка по MetaTrader 5
Как самому создать советника или индикатор - Алгоритмический трейдинг, торговые роботы - Справка по MetaTrader 5
  • www.metatrader5.com
Для разработки торговых систем в платформу встроен собственный язык программирования MetaQuotes Language 5 ( MQL5 ), среда разработки MetaEditor и...
 
danil77783:

Buon pomeriggio. La domanda è la seguente. Scritto un EA, attaccato un trailing stop ad esso, compilato.......... non funziona:))))) Ho riavviato il mio computer, ho modificato il codice sorgente e funziona. Ho iniziato a regolarlo tramite i parametri di input, ancora una volta non funziona, o meglio è cambiato una volta, ed è tutto.......... Può darsi che il vento abbia un problema o che io abbia di nuovo fatto un casino da qualche parte. Sto allegando il codice sorgente.


 if (timeprev == Time [0])
{
         timeprev = Time [0];
return;

}

 
Vladimir Pastushak:


ancora non mette un tickprofit.... Per favore, date un'altra occhiata.

 
danil77783:

ancora non mette un tickprofit.... Per favore, controllate di nuovo.


Nella funzione di trailing si imposta il take profit 0 per tutti gli ordini, ma quando si apre, si imposta il take profit giusto.

Si prega di leggere la logica riga per riga,

aprire un ordine, impostare uno stop e un take

start trailing stop prendere 0

sostituire 0 nell'ordine di coda con OrderTakeProfit()

 

Ora non mette un semaforo

 
danil77783:

Ora non mette un semaforo


Mostrami il nuovo codice.

 
Vladimir Pastushak:

Mostra il nuovo codice





//+------------------------------------------------------------------+
//|                                                        test8.mq4 |
//|                        Copyright 2017, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2017, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict
//-------------------------------------------------------------------
extern double lots            = 0.1;
extern int    TakeProfit      = 50;
extern int    StopLoss        = 50;
extern int    Magic           = 777; 
extern int    Slippage        = 3;

//-------------------------------------------------------------------
extern string TMA             = "Параметры индикатора TMA";
extern string TimeFrame       = "current time frame";
extern int    HalfLength      = 56; 
extern int    Price           = PRICE_CLOSE;
extern double ATRMultiplier   = 2.0;
extern int    ATRPeriod       = 100;
extern bool   Interpolate     = true;
extern int    TrailingStop    = 50; 
extern int    TrailingStep    = 20;
int    timeprev        = 0;
//-------------------------------------------------------------------
double PriceHigh, PriceLow, SL ,TP;
int ticket;


//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
   if (Digits == 3 || Digits == 5);
   {
       TakeProfit   *=10;
       Slippage     *=10;
       TrailingStop *=10;
       TrailingStep *=10;
     
       
   }  
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
    if (timeprev == Time [0])
    {
         timeprev = Time [0];
         return;
  }
    PriceHigh = iCustom(NULL, 0, "TMA_Fair", TimeFrame, HalfLength, Price, ATRMultiplier, ATRPeriod, Interpolate, 1, 0);  
    PriceLow  = iCustom(NULL, 0, "TMA_Fair", TimeFrame, HalfLength, Price, ATRMultiplier, ATRPeriod, Interpolate, 2, 0);  
    
    if (CountSell() == 0 && Bid >= PriceHigh)
    {
        ticket = OrderSend(Symbol(), OP_SELL, lots, Bid, Slippage, 0, 0, "TMA robot", Magic, 0, Red);  
        if (ticket > 0)
        {
            TP = NormalizeDouble(Bid - TakeProfit*Point, Digits);
           
            if (OrderSelect(ticket, SELECT_BY_TICKET)) 
                if(!OrderModify(ticket, OrderOpenPrice(), SL, TP, 0));
                    Print("Ошибк амодификации ордера на продажу!");
        } else Print("Ошибка открытия ордера на продаду!"); 
    }
  

    if (CountBuy() == 0 && Ask <= PriceLow)
    
      {
         ticket = OrderSend(Symbol(), OP_BUY, lots, Ask, Slippage, 0, 0, "TMA robot", Magic, 0, Blue);  
         if (ticket > 0)
           { 
               
                TP = NormalizeDouble(Ask + TakeProfit*Point, Digits);
                if (OrderSelect(ticket, SELECT_BY_TICKET)) 
                if(!OrderModify(ticket, OrderOpenPrice(), SL, TP, 0));
                  Print ("Ошибка модификации ордера на покупку!");
           }      else Print("Ошибка открытия ордера на покупкку!");
      }
     
     Trailing();    
    }
//+------------------------------------------------------------------+
void Trailing()
{
    for (int i=OrdersTotal() -1; i>=0; i--)
    {
      if (OrderSelect (i, SELECT_BY_POS, MODE_TRADES))
      {
         if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic)
         {
            if (OrderType() == OP_BUY)
            {
               if (Bid - OrderOpenPrice() > TrailingStop*Point || OrderStopLoss() == 0)
               {
                   if (OrderStopLoss() < Bid-(TrailingStop+TrailingStep)*Point || OrderStopLoss() == OrderTakeProfit())
                   {
                      if (!OrderModify(OrderTicket(), OrderOpenPrice(), NormalizeDouble (Bid-TrailingStop*Point, Digits), 0, 0))
                         Print ("Ошибка модификации ордера на покупку!");
                   } 
               }
            }
            
            if (OrderType() == OP_SELL)
            {
                if (OrderOpenPrice() - Ask > TrailingStop*Point || OrderStopLoss() == 0)
                {
                    if (OrderStopLoss() > Ask + (TrailingStop+TrailingStep)*Point || OrderStopLoss() == OrderTakeProfit())
                    {
                        if (!OrderModify(OrderTicket(), OrderOpenPrice(), NormalizeDouble( Ask + TrailingStop*Point, Digits), 0, 0))
                             Print ("Ошибка модификации ордера на родажу!"); 
                    }
                    
                }
            }
         
         }
      }
    }
}
  
//+------------------------------------------------------------------+


int CountSell() 
  {
    int count = 0;
    for (int trade = OrdersTotal()-1; trade>=0; trade--)
    {
       if (OrderSelect(trade, SELECT_BY_POS, MODE_TRADES))
       {
          if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == OP_SELL)
             count++;
       }   
    }
    return(count);
  }
//-----------------------------------------------------------------------------------------------  
  int CountBuy() 
  {
    int count = 0;

    for (int trade = OrdersTotal()-1; trade>=0; trade--)
    {
       if (OrderSelect(trade, SELECT_BY_POS, MODE_TRADES))
       {
          if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == OP_BUY)
             count++;
       }   
    }
    return(count);
  }
//-----------------------------------------------------------------------------------------------  
  
       
       
  
 
danil77783:





Ti ho detto chiaramente che nel trailing hai messo 0 invece di prendere

Seleziona questa opzione.

//+------------------------------------------------------------------+
//|                                                        test8.mq4 |
//|                        Copyright 2017, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2017, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict
//-------------------------------------------------------------------
extern double lots            = 0.1;
extern int    TakeProfit      = 100;
extern int    StopLoss        = 50;
extern int    Magic           = 777; 
extern int    Slippage        = 3;

//-------------------------------------------------------------------
extern string TMA             = "Параметры индикатора TMA";
extern string TimeFrame       = "current time frame";
extern int    HalfLength      = 56; 
extern int    Price           = PRICE_CLOSE;
extern double ATRMultiplier   = 2.0;
extern int    ATRPeriod       = 100;
extern bool   Interpolate     = true;
extern int    TrailingStop    = 50; 
extern int    TrailingStep    = 20;
int    timeprev        = 0;
//-------------------------------------------------------------------
double PriceHigh, PriceLow, SL ,TP;
int ticket;


//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
   if (Digits == 3 || Digits == 5);
   {
       TakeProfit   *=10;
       Slippage     *=10;
       TrailingStop *=10;
       TrailingStep *=10;
     
       
   }  
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
    if (timeprev == Time [0])return;
         timeprev = Time [0];
  
    PriceHigh = iCustom(NULL, 0, "TMA_Fair", TimeFrame, HalfLength, Price, ATRMultiplier, ATRPeriod, Interpolate, 1, 0);  
    PriceLow  = iCustom(NULL, 0, "TMA_Fair", TimeFrame, HalfLength, Price, ATRMultiplier, ATRPeriod, Interpolate, 2, 0);  
    
    if (CountSell() == 0 && Bid >= PriceHigh)
    {
        ticket = OrderSend(Symbol(), OP_SELL, lots, Bid, Slippage, 0, 0, "TMA robot", Magic, 0, Red);  
        if (ticket > 0)
        {
            TP = NormalizeDouble(Bid - TakeProfit*Point, Digits);
            SL = NormalizeDouble(Bid + StopLoss*Point, Digits);
            if (OrderSelect(ticket, SELECT_BY_TICKET)) 
                if(!OrderModify(ticket, OrderOpenPrice(), SL, TP, 0));
                    Print("Ошибк амодификации ордера на продажу!");
        } else Print("Ошибка открытия ордера на продаду!"); 
    }
  

    if (CountBuy() == 0 && Ask <= PriceLow)
    
      {
         ticket = OrderSend(Symbol(), OP_BUY, lots, Ask, Slippage, 0, 0, "TMA robot", Magic, 0, Blue);  
         if (ticket > 0)
           { 
                SL = NormalizeDouble(Ask - StopLoss*Point, Digits);
                TP = NormalizeDouble(Ask + TakeProfit*Point, Digits);
                if (OrderSelect(ticket, SELECT_BY_TICKET)) 
                if(!OrderModify(ticket, OrderOpenPrice(), SL, TP, 0));
                  Print ("Ошибка модификации ордера на покупку!");
           }      else Print("Ошибка открытия ордера на покупкку!");
      }
     
     Trailing();    
    }
//+------------------------------------------------------------------+
void Trailing()
{
    for (int i=OrdersTotal() -1; i>=0; i--)
    {
      if (OrderSelect (i, SELECT_BY_POS, MODE_TRADES))
      {
         if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic)
         {
            if (OrderType() == OP_BUY)
            {
               if (Bid - OrderOpenPrice() > TrailingStop*Point || OrderStopLoss() == 0)
               {
                   if (OrderStopLoss() < Bid-(TrailingStop+TrailingStep)*Point || OrderStopLoss() == 0)
                   {
                      if (!OrderModify(OrderTicket(), OrderOpenPrice(), NormalizeDouble (Bid-TrailingStop*Point, Digits),OrderTakeProfit(), 0))  //          --------------------------
                         Print ("Ошибка модификации ордера на покупку!");
                   } 
               }
            }
            
            if (OrderType() == OP_SELL)
            {
                if (OrderOpenPrice() - Ask > TrailingStop*Point || OrderStopLoss() == 0)
                {
                    if (OrderStopLoss() > Ask + (TrailingStop+TrailingStep)*Point || OrderStopLoss() == 0)
                    {
                        if (!OrderModify(OrderTicket(), OrderOpenPrice(), NormalizeDouble( Ask + TrailingStop*Point, Digits),OrderTakeProfit(), 0))   //          --------------------------
                             Print ("Ошибка модификации ордера на родажу!"); 
                    }
                    
                }
            }
         
         }
      }
    }
}
  
//+------------------------------------------------------------------+


int CountSell() 
  {
    int count = 0;
    for (int trade = OrdersTotal()-1; trade>=0; trade--)
    {
       if (OrderSelect(trade, SELECT_BY_POS, MODE_TRADES))
       {
          if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == OP_SELL)
             count++;
       }   
    }
    return(count);
  }
//-----------------------------------------------------------------------------------------------  
  int CountBuy() 
  {
    int count = 0;

    for (int trade = OrdersTotal()-1; trade>=0; trade--)
    {
       if (OrderSelect(trade, SELECT_BY_POS, MODE_TRADES))
       {
          if (OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == OP_BUY)
             count++;
       }   
    }
    return(count);
  }
//-----------------------------------------------------------------------------------------------  
 
Salve.
Per favore, aiutatemi a confrontare il prezzo della MA sulla prima barra con i prezzi della MA sulle quattro barre precedenti. Se il prezzo è aumentato e la differenza è maggiore di N riempire il buffer. Sto cercando di
    
    MA_1  = iMA(NULL, 0, ma_period, 0, ma_method,applied_price, i+1);
    MA_2  = iMA(NULL, 0, ma_period, 0, ma_method,applied_price, i+2);
    MA_3  = iMA(NULL, 0, ma_period, 0, ma_method,applied_price, i+3);
    if(MA_1>MA_2)
    {
    double N_=0.005;
    BarCount=4;
    BUL=false;
   for(int il=i+1;il<=BarCount;il++)
     {
      if(iMA(NULL, 0, ma_period, 0, ma_method,applied_price, i)-iMA(NULL, 0, ma_period, 0, ma_method,applied_price, i+il)>=N_ )
      {BUL=true;break;}
     }
     RefreshRates();
      if(BUL)
       {
      BufferUP[i+1]=low[i+1]-distance*MyPoint;
      BUL=false;
    
       }
       }