ERR_STRING_PARAMETER_EXPECTED 4062 String parameter expected.
res=OrderSend(Symbol(),OP_SELL,LotsOptimized(),Bid,3,Bid+(Stop_Loss*Point),0,"",0,0,MAGICMA);
Next time:
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();
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();
//----
}
//+------------------------------------------------------------------+ //+------------------------------------------------------------------+
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!
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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;
}