histori account balance and lot or last trade

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I went through so much that I'm writing here.

Do you know a function or script ... they hit last trade - or + account, and swallowed a lot like the last trade ...

My idea is:
Variant result = last trade account or reviewed or not, the result (0 /1)
or is negative which was a lot in store used

I want to use as the martingale system but all the other experts are now trades in a row! I want to wait for the signal ....


if  ( signal ) 
        {
                if  (last trade)  = true
                {  function   = lot  } 
                else 
                {  function    =lot *2  } 
        }

but simply do not prevent the different solution


thanks for the answers in advance when that is done I add an expert ....




sorry for my English
 

I am sorry, but I dont exactly understand your questions ... 
I've added the code to get the last matching ticket out of the history pool and do the martingale stuff. I recommend do not use it! It will wipe out your account, rather sooner than later! 

int magic=5020060;
double BaseLotSize=0.01;
int ticket=GetTicketFromHistory(Symbol(),magic);
if(ticket>0){
   if(OrderSelect(ticket,SELECT_BY_TICKET)){
      double LotSize=OrderLots();
      double Profit =OrderProfit();
      Print("LotSize: ",LotSize);
      Print("Profit : ",Profit);
      if(Profit<0)LotSize*=2;
      else LotSize=BaseLotSize;
   }else{Print("An error occured in OrderSelect");}
}else{Print("No matching ticket found in history!");LotSize=BaseLotSize;}
Print("Next LotSize: ",LotSize);   
      
//-------------------------------------------------------------------



//| Comment :https://forum.mql4.com/46182 states that the order
//|          in the history pool is not reliable. Therefore create 
//|          a sorted list and search for the matching OrderCloseTime.
//+------------------------------------------------------------------+  
int GetTicketFromHistory(string sym,int mn,int orderposinhistory=0,bool debug=false){
   if(debug)Print("Orders in history: ", OrdersHistoryTotal());
   int ticket,count=1,i;
   datetime orderclosedates[];
   for(i=OrdersHistoryTotal()-1;i>=0;i--){
      if(!OrderSelect(i,SELECT_BY_POS,MODE_HISTORY))continue;
      if(debug)Print("OrderSymbol: ",OrderSymbol(),"; OrderMagicNumber: ",OrderMagicNumber(),
                     " ;OrderType: ",OrderType(),"; OrderTicket: ",OrderTicket(),
                     "; OrderCloseTime: ",TimeToStr(OrderCloseTime()),";"); 
      if((OrderMagicNumber()  ==mn)
         &&(OrderSymbol()     ==sym)
         &&(OrderType()==OP_BUY||OrderType()==OP_SELL)){                       
         ArrayResize(orderclosedates,count);
         orderclosedates[count-1]=OrderCloseTime();
         count++;
      }
   }
   if(ArraySize(orderclosedates)>0){
      if(debug)Print("ArraySize (Orders found): ",ArraySize(orderclosedates));
      if(ArraySize(orderclosedates)>orderposinhistory){                         
         ArraySort(orderclosedates,WHOLE_ARRAY,0,MODE_DESCEND);
         for(i=OrdersHistoryTotal()-1;i>=0;i--){
            if(!OrderSelect(i,SELECT_BY_POS,MODE_HISTORY))continue;
            if(OrderCloseTime()==orderclosedates[orderposinhistory]){
               ticket=OrderTicket();
               if(debug)Print("Orderticket for order ",orderposinhistory," in history: ",ticket);
               break;      
            }
         }    
      }else{
         if(debug)Print("Not enough matching orders in history!");
      }
   }   
   return(ticket);   
}

What do you mean with:

Paulie_sk:
I want to use as the martingale system but all the other experts are now trades in a row! I want to wait for the signal ....
 

thank you very much for your advice,

I test

 
kronin:
int GetTicketFromHistory(string sym,int mn,int orderposinhistory=0,bool debug=false){
See also, my implementation Could EA Really Live By Order_History Alone? - MQL4 forum
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