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《如何编写股票公式》第七讲：从源码中提取选股公式

口诀：从后往前找,删除没用条,去掉修饰符,个别加等号。

例一：找出买点

VAR1:=(((HHV(HIGH,36) – CLOSE) / (HHV(HIGH,36) – LLV(LOW,36))) * 100);

VAR2:=SMA(VAR1,5,1);

VAR3:=SMA(VAR2,8,1);

H1:EMA(CLOSE,8),LINETHICK1;

H2:EMA(H1,20),LINETHICK1;

VAR4:=(CROSS(VAR2,VAR3) AND (VAR3 < 20));

VAR5:=((CLOSE > (LLV(CLOSE,60) + (0.3 * LLV(CLOSE,60)))) AND VAR4);

VAR6:=IF((CLOSE > 1000),VAR4,VAR5);

M1:EMA(CLOSE,60);

M2:EMA(CLOSE,89);

M3:EMA(CLOSE,233),LINETHICK1;

M4:EMA(CLOSE,583),LINETHICK1;

STICKLINE((H1 > H2),H1,H2,1,0.8);

STICKLINE((H1 < H2),H1,H2,1,0.8);

DRAWTEXT((CROSS(H1,H2) AND (CLOSE < EMA(CLOSE,60))),(LOW * 0.92),’买’);

DRAWTEXT(VAR6,(HIGH * 1.08),’卖’);

分解说明：

VAR1:=(((HHV(HIGH,36) – CLOSE) / (HHV(HIGH,36) – LLV(LOW,36))) * 100);

VAR2:=SMA(VAR1,5,1);

VAR3:=SMA(VAR2,8,1);

H1:EMA(CLOSE,8),LINETHICK1;

H2:EMA(H1,20),LINETHICK1;

VAR4:=(CROSS(VAR2,VAR3) AND (VAR3 < 20));

VAR5:=((CLOSE > (LLV(CLOSE,60) + (0.3 * LLV(CLOSE,60)))) AND VAR4);

VAR6:=IF((CLOSE > 1000),VAR4,VAR5);

M1:EMA(CLOSE,60);

M2:EMA(CLOSE,89);

M3:EMA(CLOSE,233),LINETHICK1;

M4:EMA(CLOSE,583),LINETHICK1;

STICKLINE((H1 > H2),H1,H2,1,0.8);

STICKLINE((H1 < H2),H1,H2,1,0.8);

第一步｛从后往前找｝找到下面这行“买”的输出语句。然后看这条语句的基本条件。

DRAWTEXT((CROSS(H1,H2) AND (CLOSE < EMA(CLOSE,60))),(LOW * 0.92),’买’);

查看结果：输出文字　　交叉　条件,条件　　　直 接 输 出 语 句　　　　　输出位置　　文字
DRAWTEXT(VAR6,(HIGH * 1.08),’卖’);

知道“基本条件”为　H1,H2,那么与此没有任何关系的语句从后往前删除。删的办法有两种：一是直接删掉；二是先用｛｝括上,待没问题时再一次性删除。加蓝色的为找到的不输出语句。

第二步｛删除没用条｝后,剩下的有用语句：

H1:EMA(CLOSE,8),LINETHICK1;　｛加蓝的为修饰类函数,原则一律删除。｝

H2:EMA(H1,20),LINETHICK1;

DRAWTEXT((CROSS(H1,H2) AND (CLOSE < EMA(CLOSE,60))),(LOW * 0.92),’买’);

第三步｛去掉修饰符｝　分别去掉：指标线粗细、显示文字、文字位置函数和文字

H1:EMA(CLOSE,8);

H2:EMA(H1,20);

CROSS(H1,H2) AND CLOSE < EMA(CLOSE,60);

第四步｛个别加等号｝　条件选股只能输出一条语句,上面这三行为全部输出,所以,作为“条件”的前两行还必须在冒号后面加上等号,表达不输出。结果：

H1:=EMA(CLOSE,8);

H2:=EMA(H1,20);

CROSS(H1,H2) AND CLOSE < EMA(CLOSE,60);

例二、找出笑脸和买入信号

以《跟庄建仓》为例。

A01:=DYNAINFO(7);

A03:=BARSCOUNT(CLOSE);

A04:=(SMA((CLOSE / HHV(HIGH,120)),3,1) * 100);

A05:=IF((A03 > 20),A04,0);

A06:=IF((LOW > A01),0,IF((HIGH < A01),1,(((A01 – LOW) + 0.009) / ((HIGH – LOW) + 0.009))));
A07:=DMA(A06,(VOL / CAPITAL)) * 60;

A09:=IF((((A07 > 0) AND (A07 > REF(A07,1))) AND (A05 <= 88)),A07,0);

Var1:=3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1);

Var2:=EMA(Var1,8);

Var3:=3*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1)-2*SMA(SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1),3,1);

趋势:=EMA(Var3,3)-10;

FILLRGN(趋势>80,趋势,80);

DRAWICON(CROSS(趋势,0),0,1);

FILLRGN((A09 > 0 AND (趋势<20 OR 趋势>REF(趋势,1)AND 趋势<50)),0,A09),colorFFFF00;

机构建仓区:0,LINETHICK0,colorFFFF00;

Var4:=(趋势-REF(趋势,1))/REF(趋势,1)*100;

STICKLINE(趋势<=13,0,20,5,0),colorcc9900;

DRAWTEXT(FILTER(趋势<=13,15),30,’准备现金’),colorcc9900;

STICKLINE(趋势<=13 AND Var4>13,0,50,5,0),color0099ff;

Var5:=FILTER((趋势<=13 AND Var4>13),10);

DRAWTEXT(Var5,60,’买入’),color0099ff;

STICKLINE(趋势>=90 AND Var4,0,30,5,0),colorgray;

Var6:=FILTER(趋势>=90,10);

DRAWTEXT(Var6,40,’清仓’),colorgray;

Var7:=LLV(LOW,30);

Var8:=HHV(HIGH,30);

Var9:=EMA((CLOSE-Var7)/(Var8-Var7)*4,4)*25;

STICKLINE(Var9>90,100,105,10,2),COLORRED;

STICKLINE(CROSS(Var4,-40),10,55,6,0),COLORRED;

Var10:=(Var9-LLV(Var9,4))/(HHV(Var9,4)-LLV(Var9,4))*100;

DRAWTEXT(IF(CROSS(Var9,Var10) AND Var9>87,95,0),88,’险’),Color00FF00,ALIGN1;

DRAWICON(CROSS(90,Var9),95,9);

Var11:=SMA(ABS(L-REF(L,1)),3,1)/SMA(MAX(L-REF(L,1),0),3,1)*100;

Var12:=HHV(Var11,30)*8;

火焰山:EMA(IF(LOW<=Var7 AND 趋势<40,(Var11+Var12),0),3)/618,COLORRED,linethick2;

STICKLINE(火焰山>0,0 ,火焰山*1.2,8,0 ),COLORRED;

Var13:=(MA(C,1)+MA(C,3)+MA(C,5)+MA(C,7)+MA(C,9))/5;

Var14:=(MA(C,2)+MA(C,4)+MA(C,6)+MA(C,8)+MA(C,10))/5;

趋势线: 趋势,colorff0000;

Var16:=MAX(EMA(Var13,2)-EMA(Var14,5),0)*200;

Var17:=EMA(Var16,5);

波浪峰:Var17,stick,colorff00ff;

STICKLINE(Var17<REF(Var17,1),0,Var17,1,0),color00ff00;

Var18:=MA(趋势线,8);

if(CROSS(Var2,Var18) AND Var2<15,50,0),COLORRED;

DRAWTEXT(CROSS(趋势线,Var2)AND 趋势线>REF(趋势线,1)AND 趋势线<50,50,’追涨’),COLORFF0000;

分析：这个公式输出语句非常多,但多数都是用于趋势判断的。所以不用管它。仍按我们既定的思路进行。

第一步｛从后往前找｝,先删除发出信号关键语句之后的（红色为输出语句,它以下的语句已经删去,蓝色为等待下步删除的）

A01:=DYNAINFO(7);

A03:=BARSCOUNT(CLOSE);

A04:=(SMA((CLOSE / HHV(HIGH,120)),3,1) * 100);

A05:=IF((A03 > 20),A04,0);

A06:=IF((LOW > A01),0,IF((HIGH < A01),1,(((A01 – LOW) + 0.009) / ((HIGH – LOW) + 0.009))));
A07:=DMA(A06,(VOL / CAPITAL)) * 60;

A09:=IF((((A07 > 0) AND (A07 > REF(A07,1))) AND (A05 <= 88)),A07,0);

Var1:=3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1);

Var2:=EMA(Var1,8);

Var3:=3*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1)-2*SMA(SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1),3,1);

趋势:=EMA(Var3,3)-10;

FILLRGN(趋势>80,趋势,80);

DRAWICON(CROSS(趋势,0),0,1);

FILLRGN((A09 > 0 AND (趋势<20 OR 趋势>REF(趋势,1)AND 趋势<50)),0,A09),colorFFFF00;

机构建仓区:0,LINETHICK0,colorFFFF00;

Var4:=(趋势-REF(趋势,1))/REF(趋势,1)*100;

STICKLINE(趋势<=13,0,20,5,0),colorcc9900;

DRAWTEXT(FILTER(趋势<=13,15),30,’准备现金’),colorcc9900;

STICKLINE(趋势<=13 AND Var4>13,0,50,5,0),color0099ff;

Var5:=FILTER((趋势<=13 AND Var4>13),10);

DRAWTEXT(Var5,60,’买入’),color0099ff;

第二步｛删除没用条｝后

Var3:=3*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1)-2*SMA(SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1),3,1);

趋势:=EMA(Var3,3)-10;

DRAWICON(CROSS(趋势,0),0,1);

Var4:=(趋势-REF(趋势,1))/REF(趋势,1)*100;

Var5:=FILTER((趋势<=13 AND Var4>13),10);

DRAWTEXT(Var5,60,’买入’),color0099ff;

第三步｛去掉修饰符后｝：

趋势:=EMA(Var3,3)-10;

CROSS(趋势,0);

Var4:=(趋势-REF(趋势,1))/REF(趋势,1)*100;

Var5:=FILTER((趋势<=13 AND Var4>13),10);

Var5;

第四步｛个别加等号｝本公式中的“条件”语句都是不输出的,所以此项省略,但因是要笑脸和买入两个信号,所以还必须把它们连结起来：

Var3:=3*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1)-2*SMA(SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1),3,1);

趋势:=EMA(Var3,3)-10;

Var4:=(趋势-REF(趋势,1))/REF(趋势,1)*100;

Var5:=FILTER((趋势<=13 AND Var4>13),10);

CROSS(趋势,0)or Var5;

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