Belajar Membuat EA Sederhana 17

http://jumforex.blogspot.com/2012/10/belajar-membuat-ea-sederhana-17.html

Pastikan telah mengikuti di part 16 disini

Nah setelah kita pelajari cara membuat custom  indikator Donchian pada part sebelumnya , maka kita akan coba bikin EAnya dengan indikator tersebut
Yandg belum punya indikator silahkan  download dulu di part 15

Rulenya sbb:
mode trend
Buy : Pada saat harga di atas garis merah atas
Sell : Pada saat harga di bawah garis merah bawah

mode reversal
dan rule di atas di balik

Sehingga di tambahkan
if(Mode_trend){
if(da<Ask) signal=1;// aturan buy
if(db>Bid) signal=2;//aturan sell
}

if(!Mode_trend){
if(da<Ask) signal=2;// aturan sell
if(db>Bid) signal=1;//aturan buy
}
Ini untu mengatur sesuai selera signal mana yang mau digunakan

Untuk EA yang dibikin mengacu pada EA yang telah dibikin sebelumnya



//+------------------------------------------------------------------+
//|                                               EA Jum+Donchian+   |
//|                                                gifaesa@yahoo.com |
//|                                     http://JumForex.blogspot.com |
//+------------------------------------------------------------------+

#property copyright "JumForex.blogspot.com"
#property link      "Gifaesa@yahoo.com"

extern string  Nama_EA                 = "Jum+Donchian+";
extern bool    Trade_buy               = true;
extern bool    Trade_sell              = true;
extern int     Mulai_Jam               = 6;
extern int     Akhir_Jam               = 20;
extern bool    Tp_in_Money             = false;
extern double  TP_in_money             = 2;
extern bool    Mode_trend             = true;
extern int     TP                      = 100;
extern int     SL                      = 500;
extern double  Lots                    = 0.1;
extern bool    TrailingStop_           = true;
extern int     TrailingStop            = 25;
extern int     Magic                   = 69;
extern string  Seting_Donchian         = "Sesuka Hati";
extern int     IPeriod                 = 20;

double slb,tpb,sls,tps,pt;
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//----
   if(Digits==3 || Digits==5) pt=10*Point;   else   pt=Point;
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//----

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {

if(TrailingStop_)dtrailing();
if(Tp_in_Money && TP_in_money<= money()) closeall();
//----
 double da = iCustom(Symbol(), 0,"Donchian Bands",IPeriod, 0,0 ) ;// garis atas modenya 0
 double db = iCustom(Symbol(), 0,"Donchian Bands",IPeriod, 1,0 ) ;// garis bawah modenya 1
 double dt = iCustom(Symbol(), 0,"Donchian Bands",IPeriod, 2,0 ) ;// garis tengah modenya 2
int signal;
if(Mode_trend){
if(da<Ask) signal=1;// aturan buy
if(db>Bid) signal=2;//aturan sell
}

if(!Mode_trend){
if(da<Ask) signal=2;// aturan sell
if(db>Bid) signal=1;//aturan buy
}

if(Jam_trade()==1){
   if(SL==0)slb=0;else slb=Ask-SL*pt;
   if(SL==0)sls=0;else sls=Bid+SL*pt;
   if(TP==0)tpb=0;else tpb=Ask+TP*pt;
   if(TP==0)tps=0;else tps=Bid-TP*pt;
  if(jumlahorder(0)==0 && jumlahorder(1)==0 && Trade_buy  && signal==1) {OrderSend(Symbol(),OP_BUY,NR(Lots),Ask,3,slb, tpb,Nama_EA,Magic,0,Blue);}
  if(jumlahorder(0)==0  && jumlahorder(1)==0 && Trade_sell && signal==2) {OrderSend(Symbol(),OP_SELL,NR(Lots),Bid,3,sls, tps,Nama_EA,Magic,0,Red);}
 }
//----
   return(0);
  }
//+------------------------------------------------------------------+

int Jam_trade()
{
   bool trade = false;
   if(Mulai_Jam > Akhir_Jam){
     if (Hour() >= Mulai_Jam || Hour() < Akhir_Jam) trade = true;
   } else
     if (Hour() >= Mulai_Jam && Hour() < Akhir_Jam) trade = true;

   return (trade);
}

int jumlahorder( int tipe)
{
int total=0;
for(int i=0; i<OrdersTotal(); i++)
  {
      OrderSelect(i,SELECT_BY_POS,MODE_TRADES);
      if(OrderSymbol()!=Symbol() || OrderMagicNumber()!=Magic || OrderType()!=tipe) continue;
     total++;
  }

return(total);
}
double NR(double thelot)
{
    double maxlots = MarketInfo(Symbol(), MODE_MAXLOT),
    minilot = MarketInfo(Symbol(), MODE_MINLOT),
    lstep = MarketInfo(Symbol(), MODE_LOTSTEP);
    double lots = lstep * NormalizeDouble(thelot / lstep, 0);
    lots = MathMax(MathMin(maxlots, lots), minilot);
    return (lots);
}

void dtrailing()
{
for(int i=0; i<OrdersTotal(); i++){
      OrderSelect(i,SELECT_BY_POS,MODE_TRADES);
        if(OrderSymbol()!=Symbol() || OrderMagicNumber()!=Magic ) continue;
        if(OrderType()==OP_BUY)  {
         if(Bid-OrderOpenPrice()>pt*TrailingStop)  {
           if((OrderStopLoss()<Bid-pt*TrailingStop) || (OrderStopLoss()==0)) {
              OrderModify(OrderTicket(),OrderOpenPrice(),Bid-pt*TrailingStop,OrderTakeProfit(),0,Green);
              return(0);
              }
              }
           }
        if(OrderType()==OP_SELL)  {
         if((OrderOpenPrice()-Ask)>(pt*TrailingStop)){
           if(OrderStopLoss()>(Ask+pt*TrailingStop) || (OrderStopLoss()==0)){
              OrderModify(OrderTicket(),OrderOpenPrice(),Ask+pt*TrailingStop,OrderTakeProfit(),0,Red);
              return(0);
              }
              }
           }
     }

}
void closeall()
{
for (int i = OrdersTotal() - 1; i >= 0; i--) {
OrderSelect(i, SELECT_BY_POS, MODE_TRADES);
if (OrderSymbol() != Symbol() || OrderMagicNumber()!=Magic ) continue;
if (OrderType() > 1) OrderDelete(OrderTicket());
else {
if (OrderType() == 0) OrderClose(OrderTicket(), OrderLots(), Bid, 3, CLR_NONE);
else               OrderClose(OrderTicket(), OrderLots(), Ask, 3, CLR_NONE);
}
}
}
double money()
{
double dp = 0;
int i;
for (i = 0; i < OrdersTotal(); i++) {
OrderSelect(i, SELECT_BY_POS, MODE_TRADES);
if (OrderSymbol() != Symbol()  || OrderMagicNumber()!=Magic) continue;
dp += OrderProfit();
}
return(dp);
}

Jadi deh
Mudah2 an dengan gambaran EA di atas akan membuka wawasan bagi trader semuanya

Salam Sukses