关于论坛中R-Break策略中全局变量的几点疑问 [开拓者 TB]
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Params
Numeric notbef(9.00);
Numeric notaft(14.55);
Numeric f1(0.35);
Numeric f2(0.07);
Numeric f3(0.25);
Numeric reverse(1.00);
Numeric rangemin(0.2);
Numeric xdiv(3);
Vars
NumericSeries ssetup(0);
NumericSeries bsetup(0);
NumericSeries senter(0);
NumericSeries benter(0);
NumericSeries bbreak(0);
NumericSeries sbreak(0);
NumericSeries ltoday(0);
NumericSeries hitoday(9999);
NumericSeries startnow(0);
NumericSeries div(0);
BoolSeries rfilter(false);
Numeric i_reverse;
Numeric i_rangemin;
Numeric i_vB;
Numeric i_vS;
Begin
i_reverse = reverse*(OpenD(0)/100);
i_rangemin = rangemin*(OpenD(0)/100);
if(BarStatus==0)
{
startnow=0;
div=max(xdiv,1);
}
if(Date != Date[1])
{
SetGlobalVar(0,0);
SetGlobalVar(1,0);
startnow=startnow+1;
ssetup=hitoday[1]+f1*(Close[1]-ltoday[1]);
senter=((1+f2)/2)*(hitoday[1]+Close[1])-(f2)*ltoday[1];
benter=((1+f2)/2)*(ltoday[1]+Close[1])-(f2)*hitoday[1];
bsetup=ltoday[1]-f1*(hitoday[1]-Close[1]);
bbreak=ssetup+f3*(ssetup-bsetup);
sbreak=bsetup-f3*(ssetup-bsetup);
hitoday=High;
ltoday=Low;
rfilter=(hitoday[1]-ltoday[1])>=i_rangemin;
}
if(High>hitoday)
{
hitoday=High;
}
if(Low<ltoday)
{
ltoday=Low;
}
if(Time*100>=notbef and Time*100<notaft and startnow>=2 and rfilter)
{
if(Time != GetGlobalVar(1) and GetGlobalVar(1) != 0)
{
SetGlobalVar(1,10000);
}
if(hitoday>=ssetup and marketposition>-1 and GetGlobalVar(1)<1)
{
If(Low<=(senter+(hitoday-ssetup)/div))
{
SellShort(1,senter+(hitoday-ssetup)/div);
SetGlobalVar(1,Time);
Return;
}
}
if(ltoday<=bsetup and marketposition<1 and GetGlobalVar(1)<1)
{
If(High>=(benter-(bsetup-ltoday)/div))
{
Buy(1,benter-(bsetup-ltoday)/div);
SetGlobalVar(1,Time);
Return;
}
}
if(marketposition==-1)
{
SetGlobalVar(0,1);
if(High-EntryPrice>=i_reverse)
{
BuyToCover(1,entryprice+i_reverse);
Return;
}
}
if(marketposition==1)
{
SetGlobalVar(0,1);
if(EntryPrice-Low>=i_reverse)
{
Sell(1,entryprice-i_reverse);
Return;
}
}
if(marketposition==0)
{
if(High>=bbreak and GetGlobalVar(0) == 0)
{
Buy(1,bbreak);
Return;
}
}
if(marketposition==0)
{
if(low<=sbreak and GetGlobalVar(0) == 0)
{
SellShort(1,sbreak);
Return;
}
}
}
if(Time*100>=notaft and Time<0.1600)
{
if(marketposition==-1)
{
BuyToCover(1,Open);
}
if(marketposition==1)
{
Sell(1,Open);
}
}
End
我想问下
ssetup=hitoday[1]+f1*(Close[1]-ltoday[1]);
senter=((1+f2)/2)*(hitoday[1]+Close[1])-(f2)*ltoday[1];
benter=((1+f2)/2)*(ltoday[1]+Close[1])-(f2)*hitoday[1];
bsetup=ltoday[1]-f1*(hitoday[1]-Close[1]);
bbreak=ssetup+f3*(ssetup-bsetup);
sbreak=bsetup-f3*(ssetup-bsetup);
hitoday=High;
ltoday=Low;
if(High>hitoday)
{
hitoday=High;
}
if(Low<ltoday)
{
ltoday=Low;
}
其中的hitoday和ltoday代表着什么 是High和Low吗?那为什么不直接替换掉,我替换掉了 而六个变量的值也因此发生改变?
还有一个问题就是后面的两个if循环,为什么hitoday和ltoday赋值后,还与low和high比较。两者不是一样的了吗?我也试过,如果不加上这句,答案还是不一样。
本人是菜鸟,不懂TB的一些关键的思想,请求大神解答。
有思路,想编写各种指标公式,程序化交易模型,选股公式,预警公式的朋友
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