hgy请进，希望你帮助我完成这个指标

首先谢谢hgy给的参考例子，不打算用一个指标文件调用另一个指标文件了，那个我搞不定。
做了个一般指标和根据指标信号在k线图上标示箭头信号的对比，想学的就自己用点功对比着看看，只想要现成的，那我也没话可说了，我下面也没时间也不会再花时间帮忙写什么指标了。
这个写的指标有点缺陷，我也没能力解决了，凑合着用吧。
缺陷是如果要overlay到主图上，就只能先Overlay到主图上，而且只能overlay一次，否则就要出错，而双击显示在附图上没限制。
例子：
原始指标，不带买卖信号箭头提示：
function StochRaw(nLength, nSmoothing)
{
Hh = HHV(High, nLength);
Ll = LLV(Low, nLength);
Hh = HHV(High, nLength);
Ll = LLV(Low, nLength);
return ((Close - ll) / (hh - ll)) * 100;
}

function PreferStochK(nLength, nSmoothing)
{
percentK =StochRaw(nLength, nSmoothing);

MAVt[0]=0;
for(i=1; i<BarCount; i++)
MAVt = MAVt[i-1] + (percentK - MAVt[i-1]) / nSmoothing;
return MAVt;
}

function PreferStochD(nLength, nSmoothing, nSmoothings)
{
percentK = PreferStochK(nLength, nSmoothing);
MAVt[0] = 0;
for(i=1; i<BarCount; i++)
MAVt = MAVt[i-1] + (percentK - MAVt[i-1]) / nSmoothings;
return MAVt;

}

Period = Param("Period", 8, 3, 200);
Ksmooth = Param("%K Smooth", 3, 3, 200);
Dsmooth = Param("%D Smooth", 3, 3, 200);
Upper = Param("%Upper Level", 80, 0, 200);
Lower = Param("%Lower Level", 20, 0, 200);

//Plot( PreferStochK(Period, Ksmooth), "percentK", colorBlue);
//Plot( PreferStochD(Period, Ksmooth, Dsmooth), "percentD", colorRed);

K = PreferStochK(Period, Ksmooth);
D = PreferStochD(Period, Ksmooth, Dsmooth);
J = 3 * PreferStochK(Period, Ksmooth) - 2 * PreferStochD(Period, Ksmooth, Dsmooth);

//Plot(K, "Stochastic %K", ParamColor("%K color", colorGreen ), ParamStyle("%K style"));
Plot(D, "%D", ParamColor("%D color", colorBlue ), ParamStyle("%D style"));
Plot(J, "%J", ParamColor("%J color", colorRed ), ParamStyle("%J style"));

Plot(Upper, "", ParamColor("Upper color", colorBlack ), ParamStyle("Upper style"));
Plot(Lower, "", ParamColor("Lower color", colorBlack ), ParamStyle("Lower style"));


对比的带买卖信号箭头提示：
function StochRaw(nLength, nSmoothing)
{
Hh = HHV(High, nLength);
Ll = LLV(Low, nLength);
Hh = HHV(High, nLength);
Ll = LLV(Low, nLength);
return ((Close - ll) / (hh - ll)) * 100;
}

function PreferStochK(nLength, nSmoothing)
{
percentK =StochRaw(nLength, nSmoothing);

MAVt[0]=0;
for(i=1; i<BarCount; i++)
MAVt = MAVt[i-1] + (percentK - MAVt[i-1]) / nSmoothing;
return MAVt;
}

function PreferStochD(nLength, nSmoothing, nSmoothings)
{
percentK = PreferStochK(nLength, nSmoothing);
MAVt[0] = 0;
for(i=1; i<BarCount; i++)
MAVt = MAVt[i-1] + (percentK - MAVt[i-1]) / nSmoothings;
return MAVt;

}

Period = Param("Period", 8, 3, 200);
Ksmooth = Param("%K Smooth", 3, 3, 200);
Dsmooth = Param("%D Smooth", 3, 3, 200);
Upper = Param("%Upper Level", 80, 0, 200);
Lower = Param("%Lower Level", 20, 0, 200);

overlap=ParamToggle("Overlapping JD","off|on",0 );
showArrow=ParamToggle("Show Arrow","off|on",1 );

//Plot( PreferStochK(Period, Ksmooth), "percentK", colorBlue);
//Plot( PreferStochD(Period, Ksmooth, Dsmooth), "percentD", colorRed);

K = PreferStochK(Period, Ksmooth);
D = PreferStochD(Period, Ksmooth, Dsmooth);
J = 3 * PreferStochK(Period, Ksmooth) - 2 * PreferStochD(Period, Ksmooth, Dsmooth);

if(Overlap)
{//Plot(K, "Stochastic %K", ParamColor("%K color", colorGreen ), ParamStyle("%K style"));
Plot(D, "%D", ParamColor("%D color", colorBlue ), ParamStyle("%D style"));
Plot(J, "%J", ParamColor("%J color", colorRed ), ParamStyle("%J style"));

Plot(Upper, "", ParamColor("Upper color", colorBlack ), ParamStyle("Upper style"));
Plot(Lower, "", ParamColor("Lower color", colorBlack ), ParamStyle("Lower style"));
}

Big = Param("Big Level", 90, 0, 200);
Small = Param("Small Level", 5, 0, 200);

Buy=Cross(J, Small);
Sell=Cross(Big, J);

shape = Buy * shapeUpArrow + Sell * shapeDownArrow;

Plot( Close, "Price", colorBlack, styleCandle );
if(showArrow)
{
PlotShapes( shape, IIf( Buy, colorGreen, colorRed ), 0, IIf( Buy, Low, High ) );}
上面红色部分为指标定义部分，可以用你需要的任何指标定义来取代。
蓝色部分为显示箭头信号的主要“必须”部分。
绿色部分是为了方便调节使用的可选项

 

下面是对上面指标对比的一些注解：
overlap=ParamToggle("Overlapping JD","off|on",0 ); //选择开关选项，不显示指标
showArrow=ParamToggle("Show Arrow","off|on",1 ); //选择开关选项，显示箭头
这2句分别定义是否显示指标和信号箭头的选择开关，我选择的默认是不显示指标，显示k线箭头信号。

if(Overlap)
{
。。。。。。
}
是否显示指标的判断和执行语句。

if(showArrow)
{
。。。。。。
}
是否显示箭头信号的判断和执行语句。

Big = Param("Big Level", 90, 0, 200);
Small = Param("Small Level", 5, 0, 200);
此2句是定义你的信号判断参数值，用来方便调节参数而不需要修改指标文件。

Buy=Cross(J, Small);
Sell=Cross(Big, J);

shape = Buy * shapeUpArrow + Sell * shapeDownArrow;
此3句为信号判断生成条件，根据你需要的不同指标文件你可以用不同的指标名替换上面的big、small和J，
其中Cross(J, Small)表示的是J从下向上穿越Small,如果你要表示J从上向下穿越Small，就需要更改为Cross(Small，J)。
本例中是以J值从大于90向下穿越90时发出卖出sell箭头信号，以J值从小于5向上穿越5时发出买入箭头信号。

Plot( Close, "Price", colorBlack, styleCandle );

PlotShapes( shape, IIf( Buy, colorGreen, colorRed ), 0, IIf( Buy, Low, High ) );
上面语句实现在k线上标示出信号箭头。

 

我对amibroker的指标编写体系也不熟悉，匆匆的看了些例子和帮助，上面的买卖箭头信号花了3天时间，下面也不想再花时间搞了，想用想学就自己花点时间看看，看看帮助文件和说明书。
上面的注解也算比较详细的，如果不愿意花时间，那也就没办法了。