ERR_STRING_PARAMETER_EXPECTED 4062 String parameter expected.

 

Hey,

What does it mean... "String parameter expected"? I get this error message, when i test my EA with this StopLoss...

Tahnks

void CheckForOpen()
{
double ma;
int res;
//---- get Moving Average
ma=iMA(NULL,0,MovingPeriod,MovingShift,MODE_SMA,PRICE_CLOSE,0);
//---- sell conditions
if(Close[1]<ma)
{
res=OrderSend(Symbol(),OP_SELL,LotsOptimized(),Bid,3,Bid+(Stop_Loss*Point),"",0,0,MAGICMA);
return;
}
//---- buy conditions
if(Close[1]>ma)
{
res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,Ask-(Stop_Loss*Point),"",0,0,MAGICMA);
return;
}

 
You are missing takeprofit in both OrderSend() functions:
res=OrderSend(Symbol(),OP_SELL,LotsOptimized(),Bid,3,Bid+(Stop_Loss*Point),0,"",0,0,MAGICMA);

Next time:
 

Ok, I've arrived "order send error 134" :D

And I don't find "SRC button" can anybody help, where is it?

 

I realized, the reason, EA opens positions again and again, but I don't understand why, because there is a "return" condition in the EA!?

 

Every tick the conditions hold true the EA will attempt to send an order.
-

 

I understand, but how can i set, that EA opens position when there is no opened position, or when EA get a new buy or sell signal?

Thanks

 

Why isn't enough this?

if(CalculateCurrentOrders(Symbol())==0) CheckForOpen();
else CheckForClose();

 
Hopkinsz:

Why isn't enough this?

if(CalculateCurrentOrders(Symbol())==0) CheckForOpen();
else CheckForClose();

What's in the CalculateCurrentOrders() function?


p.s. the SRC button is just at the header of the box where u write your post...

 

I think if there's no opened position, checks for open, and if there is, checks for close...

 
extern double Lots               = 0.1;
extern double MaximumRisk        = 0.01;
extern double DecreaseFactor     = 0;
extern double MovingPeriod       = 13;
extern double MovingShift        = 0;
extern double Stop_Loss          = 70;
extern double Take_Profit        = 200;
//+------------------------------------------------------------------+
//| Calculate open positions                                         |
//+------------------------------------------------------------------+
int CalculateCurrentOrders(string symbol)
  {
   int buys=0,sells=0;
//----
   for(int i=0;i<OrdersTotal();i++)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false) break;
      if(OrderSymbol()==Symbol() && OrderMagicNumber()==MAGICMA)
        {
         if(OrderType()==OP_BUY)  buys++;
         if(OrderType()==OP_SELL) sells++;
        }
     }
//---- return orders volume
   if(buys>0) return(buys);
   else       return(-sells);
  }
//+------------------------------------------------------------------+
//| Calculate optimal lot size                                       |
//+------------------------------------------------------------------+
double LotsOptimized()
  {
   double lot=Lots;
   int    orders=HistoryTotal();     // history orders total
   int    losses=20;                 // number of losses orders without a break
//---- select lot size
   lot=NormalizeDouble(AccountFreeMargin()*MaximumRisk/1000.0,1);
//---- calcuulate number of losses orders without a break
   if(DecreaseFactor>0)
     {
      for(int i=orders-1;i>=0;i--)
        {
         if(OrderSelect(i,SELECT_BY_POS,MODE_HISTORY)==false) { Print("Error in history!"); break; }
         if(OrderSymbol()!=Symbol() || OrderType()>OP_SELL) continue;
         //----
         if(OrderProfit()>0) break;
         if(OrderProfit()<0) losses++;
        }
      if(losses>1) lot=NormalizeDouble(lot-lot*losses/DecreaseFactor,1);
     }
//---- return lot size
   if(lot<0.1) lot=0.1;
   return(lot);
  }
//+------------------------------------------------------------------+
//| Check for open order conditions                                  |
//+------------------------------------------------------------------+
void CheckForOpen()
  {
   double ma;
   int    res;
//---- get Moving Average 
   ma=iMA(NULL,0,MovingPeriod,MovingShift,MODE_SMA,PRICE_CLOSE,0);
//---- sell conditions
   if(Close[1]<ma)  
     {
      res=OrderSend(Symbol(),OP_SELL,LotsOptimized(),Bid,3,Bid+(Stop_Loss*Point*10),Bid-(Take_Profit*Point*10),"",0,0,MAGICMA);
      return(0);
     }
//---- buy conditions
   if(Close[1]>ma)  
     {
      res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,Ask-(Stop_Loss*Point*10),Ask+(Take_Profit*Point*10),"",0,0,MAGICMA);
      return(0);
     }
//----
  }
//+------------------------------------------------------------------+
//| Check for close order conditions                                 |
//+------------------------------------------------------------------+
void CheckForClose()
  {
   double ma;
//---- go trading only for first tiks of new bar
   if(Volume[0]>1) return;
//---- get Moving Average 
   ma=iMA(NULL,0,MovingPeriod,MovingShift,MODE_SMA,PRICE_CLOSE,0);
//----
   for(int i=0;i<OrdersTotal();i++)
     {
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false)        break;
      if(OrderMagicNumber()!=MAGICMA || OrderSymbol()!=Symbol()) continue;
      //---- check order type 
      if(OrderType()==OP_BUY)
        {
         if(Close[1]<ma) OrderClose(OrderTicket(),OrderLots(),Bid,3,White);
         break;
        }
      if(OrderType()==OP_SELL)
        {
         if(Close[1]>ma) OrderClose(OrderTicket(),OrderLots(),Ask,3,White);
         break;
        }
     }
//----
  }
//+------------------------------------------------------------------+
//| Start function                                                   |
//+------------------------------------------------------------------+
void start()
  {
//---- check for history and trading
   if(Bars<100 || IsTradeAllowed()==false) return;
//---- calculate open orders by current symbol
   if(CalculateCurrentOrders(Symbol())==0) CheckForOpen();
   else                                    CheckForClose();
//----
  }
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
 
Hopkinsz:

I understand, but how can i set, that EA opens position when there is no opened position, or when EA get a new buy or sell signal?

if(CalculateCurrentOrders(Symbol())==0) CheckForOpen();
   else                                    CheckForClose();

Your CalculateCurrentOrders() function will return zero when there are no orders (that belong to symbol and magic number) so CheckForOpen() will only be called if there are no orders... I am not sure I understand what's the problem? Maybe u can explain again...

 

My problem is, after that I put SL and TP, my expert opens postition on every new tick, but I don't understand why!?
I would like to solve, that EA open position when there is no opened position.

Thanks!