ea-psar_v1-0.mq4

#property version       "1.00"
#property strict
#property description   "This Expert Advisor opens orders when the PSAR changes from above to below the price or vice versa"
#property description   " "
#property description   "DISCLAIMER: This code comes with no guarantee, you can use it at your own risk"
#property description   "We recommend to test it first on a Demo Account"

/*
ENTRY BUY: PSAR changes from above the previous bar to below the current bar
ENTRY SELL: PSAR changes from below the previous bar to above the current bar
EXIT: Take profit or trailing stop using PSAR
*/

extern double LotSize=0.1;             //Position size

extern double StopLoss=20;             //Stop loss in pips
extern double TakeProfit=500;          //Take profit in pips

extern int Slippage=2;                 //Slippage in pips

extern bool TradeEnabled=true;         //Enable trade

extern double PSARStep=0.2;            //PSAR Step         
extern double PSARMaxStep=0.02;        //PSAR Max Step

extern int MagicNumber=11223344;       //Magic Number to assign to the orders

double ePoint;                         //Point normalized

bool CanOrder;                         //Check for risk management
bool CanOpenBuy;                       //Flag if there are buy orders open
bool CanOpenSell;                      //Flag if there are sell orders open

int OrderOpRetry=10;                   //Number of attempts to perform a trade operation
int SleepSecs=3;                       //Seconds to sleep if can't order
int MinBars=60;                        //Minimum bars in the graph to enable trading

double MinSL;
double MaxSL;
double TP;
double SL;
double Spread;
int Slip; 

void Initialize(){          
   RefreshRates();
   ePoint=Point;
   Slip=Slippage;
   if (MathMod(Digits,2)==1){
      ePoint*=10;
      Slip*=10;
   }
   TP=TakeProfit*ePoint;
   SL=StopLoss*ePoint;
   CanOrder=TradeEnabled;
   CanOpenBuy=true;
   CanOpenSell=true;
}

void CheckCanOrder(){            
   if( Bars<MinBars ){
      Print("INFO - Not enough Bars to trade");
      CanOrder=false;
   }
   OrdersOpen();
   return;
}

void OrdersOpen(){
   for( int i = 0 ; i < OrdersTotal() ; i++ ) {
      if( OrderSelect( i, SELECT_BY_POS, MODE_TRADES ) == false ) {
         Print("ERROR - Unable to select the order - ",GetLastError());
         break;
      } 
      if( OrderSymbol()==Symbol() && OrderType() == OP_BUY) CanOpenBuy=false;
      if( OrderSymbol()==Symbol() && OrderType() == OP_SELL) CanOpenSell=false;
   }
   return;
}

void CloseAll(int Command){
   double ClosePrice=0;
   for( int i = 0 ; i < OrdersTotal() ; i++ ) {
      if( OrderSelect( i, SELECT_BY_POS, MODE_TRADES ) == false ) {
         Print("ERROR - Unable to select the order - ",GetLastError());
         break;
      }
      if( OrderSymbol()==Symbol() && OrderType()==Command) {
         if(Command==OP_BUY) ClosePrice=Bid;
         if(Command==OP_SELL) ClosePrice=Ask;
         double Lots=OrderLots();
         int Ticket=OrderTicket();
         for(int j=1; j<OrderOpRetry; j++){
            bool res=OrderClose(Ticket,Lots,ClosePrice,Slip,Red);
            if(res){
               Print("TRADE - CLOSE - Order ",Ticket," closed at price ",ClosePrice);
               break;
            }
            else Print("ERRO

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