Calcular Media Spread

// https://youtu.be/VuyDXGWUBdk

int contador=1;
int sumadorSpread=0;

int OnCalculate(const int rates_total,
                const int prev_calculated,
                const int begin,
                const double &price[])
  {
   Comment("Spread: ",SymbolInfoInteger(_Symbol,SYMBOL_SPREAD),

           "\ncontador: ",contador,
           "\nSumadorspread: ",sumadorSpread,
           "\nMedia Spread: ",
                               (sumadorSpread=sumadorSpread +
                               SymbolInfoInteger(_Symbol,SYMBOL_SPREAD))
                               /contador
          );

   contador++;

   return(0);
  }


  void DibujarLinea(string Linea, double Posicion)
   {
    ObjectCreate(Symbol(),Linea,OBJ_HLINE,0,0,Posicion);
    ObjectSetInteger(Symbol(),Linea,OBJPROP_COLOR,clrYellow);
   }