Linear Regression Channel

#property version     "1.00"
#property strict

extern int   Len_Cn=50;                // Channel length (bars)
extern color Col_Cn=Orange;            // Channel color

extern bool         USEMOVETOBREAKEVEN=true;//Enable "no loss"
extern double       WHENTOMOVETOBE=10;      //When to move break even
extern double       PIPSTOMOVESL=5;         //How much pips to move sl
extern double       Lots=0.01;              //Lots size 
input  double       MaximumRisk   =0.02;
input  double       DecreaseFactor=0.001;
extern double       TrailingStop=40;        //TrailingStop 
extern double       Stop_Loss=400;           //Stop Loss  
extern int          MagicNumber=1234;       //MagicNumber 
input  double       TakeProfit=400;          //TakeProfit
extern int          FastMA=6;               //FastMA 
extern int          SlowMA=85;              //SlowMA
extern double       Distance=5;             //Distance 
extern double       Mom_Sell=0.3;           //Momentum_Sell 
extern double       Mom_Buy=0.3;            //Momentum_Buy 

int           err;

bool               FractalsUp=false;
bool               FractalsDown=false;
double             FractalsUpPrice=0;
double             FractalsDownPrice=0;
int                FractalsLimit=250;
int total=0;
double
Lot,Dmax,Dmin,// Amount of lots in a selected order
Lts,                             // Amount of lots in an opened order
Min_Lot,                         // Minimal amount of lots
Step,                            // Step of lot size change
Free,                            // Current free margin
One_Lot,                         // Price of one lot
Price,                           // Price of a selected order,
pips,
MA_1,MA_2,MA_3,MACD_SIGNAL;
int Type,freeze_level,Spread;

double priceopen,stoploss,takeprofit;

int orderticket;
double  Linenow=0;
double  Lineprev=0;

int
Period_MA_2,  Period_MA_3,       // Calculation periods of MA for other timefr.
Period_MA_02, Period_MA_03,      // Calculation periods of supp. MAs
K2,K3,T;

datetime dt=0;
datetime dt1=0;

int OnInit()
  {
      // код доступен только после оплаты
   }

void OnDeinit(const int reason)
  {
  }

void OnTick(void)
  {
      // код доступен только после оплаты
   }

void stop()
  {
   int cnt;

   double middleBB=iBands(Symbol(),0,20, 2,0,0,MODE_MAIN,1);//middle
   double lowerBB=iBands(Symbol(),0,20, 2,0,0,MODE_LOWER,1);//lower
   double upperBB=iBands(Symbol(),0,20, 2,0,0,MODE_UPPER,1);//upper

   double  MacdMAIN=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,1);
   double  MacdSIGNAL=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,1);

   for(cnt=0;cnt<total;cnt++)
     {
      if(!OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES))
         continue;
      if(OrderType()<=OP_SELL &&   // check for opened position 
         OrderSymbol()==Symbol())  // check for symbol
        {

         if(OrderType()==OP_BUY)
           {

            if((((Bid<OrderOpenPrice()-iATR(NULL,0,14,0))
               || ((MacdMAIN>0 && MacdMAIN<MacdSIGNAL) || (MacdMAIN<0 && (MathAbs(MacdMAIN)>MathAbs(MacdSIGNAL))))
               || Close[1]==upperBB))
               || (((Ask>OrderOpenPrice()+iATR(NULL,0,14,0))
               || Close[1]==lowerBB)))
               exitbuys();

           }
         else // go to short position
           {

            if((((Ask>OrderOpenPrice()+iATR(NULL,0,14,0)))
               || Close[1]==lowerBB)
               || (((Bid<OrderOpenPrice()-iATR(NULL,0,14,0))
               || ((MacdMAIN>0 && MacdMAIN>MacdSIGNAL) || (MacdMAIN<0 && (MathAbs(MacdMAIN)<MathAbs(MacdSIGNAL))))
               || Close[1]==upperBB)))
               exitsells();

           }
        }
     }
  }

void Trail1()
  {
   total=OrdersTotal();

   for(int cnt=0;cnt<total;cnt++)
     {
      if(!OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES))
         continue;
      if(OrderType()<=OP_SELL &&   // check for opened position 
         OrderSymbol()==Symbol())  // check for symbol
        {

         if(OrderType()==OP_BUY)
           {

            if(TrailingStop>0)
              {
               if(Bid-OrderOpenPrice()>pips*TrailingStop)
                 {
                  if(OrderStopLoss()<Bid-pips*TrailingStop)
                    {

                     RefreshRates();
                     stoploss=Bid-(pips*TrailingStop);
                     takeprofit=OrderTakeProfit()+pips*TrailingStop;
                     double StopLevel=MarketInfo(Symbol(),MODE_STOPLEVEL)+MarketInfo(Symbol(),MODE_SPREAD);
                     if(stoploss<StopLevel*pips) stoploss=StopLevel*pips;
                     string symbol=OrderSymbol();
                     double point=SymbolInfoDouble(symbol,SYMBOL_POINT);
                     if(MathAbs(OrderStopLoss()-stoploss)>point)
                        if((pips*TrailingStop)>(int)SymbolInfoInteger(_Symbol,SYMBOL_TRADE_FREEZE_LEVEL)*pips)

                           if(CheckStopLoss_Takeprofit(OP_BUY,stoploss,takeprofit))
                              if(OrderModifyCheck(OrderTicket(),OrderOpenPrice(),stoploss,takeprofit))
                                 if(!OrderModify(OrderTicket(),OrderOpenPrice(),stoploss,takeprofit,0,Green))
                                    Print("OrderModify error ",GetLastError());
                     return;
                    }
                 }
              }
           }
         else // go to short position
           {

            if(TrailingStop>0)
              {
               if((OrderOpenPrice()-Ask)>(pips*TrailingStop))
                 {
                  if((OrderStopLoss()>(Ask+pips*TrailingStop)) || (OrderStopLoss()==0))
                    {

                     RefreshRates();
                     stoploss=Ask+(pips*TrailingStop);
                     takeprofit=OrderTakeProfit()-pips*TrailingStop;
                    

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