布林带入场开盘价不正确

Question

建立基于布林带和随机指标的实践策略。

应该发生的是，如果 5 分钟柱的 Close 高于波段上限且随机指标已超过 80，则应进入 sell 订单，相反，波段下限 20 .

然而，当我运行在 MT4 进行测试时，我注意到交易严重偏离入场点（例如，在布林带内开盘，而不是在布林带外开盘）。它们不是在柱线的 Close 开盘，而是太高或太低的几个点。

我做错了什么？

这是我的代码：

extern int    MagicNumber  =  1;
extern double Lots         =  1;
extern double StopLoss     =  5;
extern double TakeProfit   = 15;
extern int    TrailingStop =  0;
       int    ThisBarTrade =  0;

int start() {
   double MyPoint = Point;
   if ( Digits == 3 || Digits == 5 ) MyPoint = Point * 10;

   double TheStopLoss   = 0;
   double TheTakeProfit = 0;

   if ( TotalOrdersCount() == 0 ) {
        if ( Bars != ThisBarTrade ) {
            ThisBarTrade = Bars;
            int result   = 0;
            if (  Open[0] <  iBands( NULL, 0, 20, 2, 0, PRICE_CLOSE, MODE_LOWER, 0 )
               && 20      >  iStochastic( NULL, 0, 12, 1, 3, MODE_SMA, 1, MODE_MAIN, 0 )
               && 0       == OrdersTotal()
               ) // Here is your open [Buy] rule -------------------
            {
               result = OrderSend( Symbol(), OP_BUY, Lots, Ask, 0, 0, 0, "", MagicNumber, 0, Blue );
               if ( result > 0 )
               {
                  TheStopLoss   = 0;
                  TheTakeProfit = 0;
                  if ( TakeProfit > 0 ) TheTakeProfit = Ask + MyPoint * TakeProfit;
                  if ( StopLoss   > 0 ) TheStopLoss   = Ask - MyPoint * StopLoss;
                  OrderSelect( result, SELECT_BY_TICKET );
                  OrderModify( OrderTicket(), OrderOpenPrice(), NormalizeDouble( TheStopLoss, Digits ), NormalizeDouble( TheTakeProfit, Digits ), 0, Green );
               }
               return( 0 ); // JIT/RET --> --> --> --> --> --> --> --> --> 
            }

            if (  Open[0] >  iBands( NULL, 0,  20, 2, 0, PRICE_CLOSE,  MODE_UPPER, 0 )
               && 80      <  iStochastic( NULL, 0, 12, 1, 3, MODE_SMA, 1, MODE_MAIN, 0 )
               && 0       == OrdersTotal()
               ) // Here is your open [Sell] rule -----------------------
            {
               result = OrderSend( Symbol(), OP_SELL, Lots, Bid, 0, 0, 0, "", MagicNumber, 0, Red );
               if ( result > 0 )
               {
                  TheStopLoss   = 0;
                  TheTakeProfit = 0;
                  if ( TakeProfit > 0 ) TheTakeProfit = Bid - MyPoint * TakeProfit;
                  if ( StopLoss   > 0 ) TheStopLoss   = Bid + MyPoint * StopLoss;
                  OrderSelect( result, SELECT_BY_TICKET );
                  OrderModify( OrderTicket(), OrderOpenPrice(), NormalizeDouble( TheStopLoss, Digits ), NormalizeDouble( TheTakeProfit, Digits ), 0, Green );
               }
               return( 0 ); // JIT/RET --> --> --> --> --> --> --> --> --> 
            }
         }
         for ( int cnt = 0; cnt < OrdersTotal(); cnt++ ) {
            OrderSelect( cnt, SELECT_BY_POS, MODE_TRADES );
            if (  OrderType()        <= OP_SELL     // !PENDING ORDER
               && OrderSymbol()      == Symbol()    // !ANOTHER MARKET
               && OrderMagicNumber() == MagicNumber // !ANOTHER EA/MMI TRADE
               )
            {
               if ( OrderType() == OP_BUY )
               {
                  if ( TrailingStop > 0 )
                  {
                     if ( Bid - OrderOpenPrice() > MyPoint * TrailingStop )
                     {
                        if ( OrderStopLoss() < Bid - MyPoint * TrailingStop )
                        {
                           OrderModify( OrderTicket(), OrderOpenPrice(), Bid - TrailingStop * MyPoint, OrderTakeProfit(), 0, Green );
                           return( 0 ); // JIT/RET --> --> --> --> --> --> --> --> --> 
                        }
                     }
                  }
               }
               else 
               {
                  if ( TrailingStop > 0 )
                  {                 
                     if ( OrderOpenPrice() - Ask > MyPoint * TrailingStop )
                     {
                        if (  OrderStopLoss() > ( Ask + MyPoint * TrailingStop )
                           || OrderStopLoss() == 0 
                           )
                        {
                           OrderModify( OrderTicket(), OrderOpenPrice(), Ask + MyPoint * TrailingStop, OrderTakeProfit(), 0, Red );
                           return( 0 ); // JIT/RET --> --> --> --> --> --> --> --> --> 
                        }
                     }
                  }
               }
            }
         }
      }
      return( 0 );
}

int TotalOrdersCount()
{
  int result = 0;
  for ( int i = 0; i < OrdersTotal(); i++ )
  {
     OrderSelect( i, SELECT_BY_POS, MODE_TRADES );
     if ( OrderMagicNumber() == MagicNumber ) result++;
  }
  return( result );
}

Answer 1

在使用 iBand() 和 iStochastic() 时，您使用的是 SHIFT 0（最后一个参数）。这意味着您正在提取 CURRENT（市场边缘）蜡烛的价值。但是，由于当前蜡烛尚未结束，其价值会根据新的传入价格不断变化。这就是为什么您的交易是以看似随机的价格点进行的。

您可能想要参考上一个（已结束）蜡烛，这意味着 SHIFT 应该是 1 而不是 0。

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