主题：求tb改金字塔

//------------------------------------------------------------------------
// 简称: JYXT_Aberration
// 名称: Aberration
// 类别: 公式应用
// 类型: 用户应用
// 输出:Rookies
//------------------------------------------------------------------------
Params
Numeric Length(35);
Numeric StdDevUp(2.0);
Numeric StdDevDn(-2.0);
Numeric Lots(1);


Vars
NumericSeries UpperBand;
NumericSeries LowerBand;
NumericSeries AveMa;
Numeric StdValue;


Begin

AveMa=Average(Close[1],Length);
StdValue = StandardDev(Close[1],Length);

UpperBand=Avema+StdDevUp*StdValue;
LowerBand=Avema-StdDevUp*StdValue;
PlotNumeric("UpperBand",UpperBand);
PlotNumeric("LowerBand",LowerBand);

PlotNumeric("AveMa",AveMa);
If(MarketPosition!=1 &&CrossOver(Close[1],UpperBand[1]))
{
Buy(Lots,Open);
}

If(MarketPosition!=-1 &&CrossUnder(Close[1],LowerBand[1]))
{
SellShort(Lots,Open);
}

If(MarketPosition==1 && Close[1]<AveMa[1])
{
Sell(Lots,Open);

}

If(MarketPosition==-1 && Close[1]>AveMa[1])
{

BuyToCover(Lots,Open);
}

End