通达信霸气精准追底（源码副图贴图）
因精典而流芳、多个平台均能使用（通达信、操盘手、同花顺、大智慧……）
{原指标源码，大智慧有DDX数据的直接复制可用}
AA1:=FILTER(L=LLV(L,13),8);
AA2:=if(LLV(L,3)=LLV(L,13) AND C<REF((H+L)/2,1),MAX(REF(LLV(L,12),BARSLAST(AA1)+1)-L,0),0);
AA3:=EMA(AA2,3)*3;
AA4:=SUMBARS(AA3>0,21);
AA5:=SUM(AA3,AA4)/21;
AA6:=REF(AA3,1)=HHV(AA3,3) AND REF(AA3,1)>AA5*3
AND COUNT(C/REF(C,1)<0.9025,8)=0 and ISUP and LLV(L,3)/HHV(H,18)<0.88;
AA7:=(COUNT("DDX.DDX">0,5)>0 OR NOT("DDX.DDX1"<"DDX.DDX2" AND "DDX.DDX2"<"DDX.DDX3")) AND COUNT("DDX.DDX">REF("DDX.DDX",1),10)>=6;
反转:=AA6 AND AA7 ;
stickline(close,0,AA3,8,1),coloryellow;
stickline(反转,0,AA3,8,0),colorred;
{以下是大智慧改良的不用DDX数据的源码}
DRAWGBKLAST(CLOSE>0,STRIP(RGB(47,79,79),RGB(0,0,0),0));
AA:=VOL/((H-L)*2-ABS(C-O));
买量:=AA*(H-L);
卖量:=0-AA*((H-C)+(O-L));
进出量:=(买量+卖量)>0;
AA1:=FILTER(L=LLV(L,13),8);
AA2:=if(LLV(L,3)=LLV(L,13) AND C<REF((H+L)/2,1),MAX(REF(LLV(L,12),BARSLAST(AA1)+1)-L,0),0);
AA3:=EMA(AA2,3)*3;
AA4:=SUMBARS(AA3>0,21);
AA5:=SUM(AA3,AA4)/21;
AA6:=REF(AA3,1)=HHV(AA3,3) AND REF(AA3,1)>AA5*3 AND COUNT(C/REF(C,1)<0.9025,8)=0 and ISUP and LLV(L,3)/HHV(H,18)<0.88;
{AA7:=(COUNT("DDX.DDX">0,5)>0 OR NOT("DDX.DDX1"<"DDX.DDX2" AND "DDX.DDX2"<"DDX.DDX3")) AND COUNT("DDX.DDX">REF("DDX.DDX",1),10)>=6;}
均线条件:=EMA(C,5)>=REF(EMA(C,5),1) ; {增加这个条件过滤掉那些股票价格继续下行，而出现信号}
反转:=FILTER(AA6 AND 进出量 AND 均线条件,3); {增加了过滤信号语句，减少重复信号}
stickline(close,0,AA3,8,1),coloryellow;
stickline(反转,0,AA3,8,0),colorred;
{以下是通达信公式源码，通达信不能用DDX数据的}
AA:=VOL/((H-L)*2-ABS(C-O));
买量:=AA*(H-L);
卖量:=0-AA*((H-C)+(O-L));
进出量:=(买量+卖量)>0;
AA1:=FILTER(L=LLV(L,13),8);
AA2:=IF(LLV(L,3)=LLV(L,13) AND C<REF((H+L)/2,1),MAX(REF(LLV(L,12),BARSLAST(AA1)+1)-L,0),0);
AA3:=EMA(AA2,3)*3;
AA4:=SUMBARS(AA3>0,21);
AA5:=SUM(AA3,AA4)/21;
AA6:=REF(AA3,1)=HHV(AA3,3) AND REF(AA3,1)>AA5*3 AND COUNT(C/REF(C,1)<0.9025,8)=0 AND LLV(L,3)/HHV(H,18)<0.88;
均线条件:=EMA(C,5)>=REF(EMA(C,5),1) ; {增加这个条件过滤掉那些股票价格继续下行，而出现信号}
反转:=FILTER(AA6 AND 进出量 AND 均线条件,3); {增加了过滤信号语句，减少重复信号}
STICKLINE(CLOSE,0,AA3,2.7,1),COLORYELLOW;
STICKLINE(反转,0,AA3,2.7,0),COLORRED;
{以下是选股公式，大智慧和通达信都能用}
AA:=VOL/((H-L)*2-ABS(C-O));
买量:=AA*(H-L);
卖量:=0-AA*((H-C)+(O-L));
进出量:=(买量+卖量)>0;
AA1:=FILTER(L=LLV(L,13),8);
AA2:=IF(LLV(L,3)=LLV(L,13) AND C<REF((H+L)/2,1),MAX(REF(LLV(L,12),BARSLAST(AA1)+1)-L,0),0);
AA3:=EMA(AA2,3)*3;
AA4:=SUMBARS(AA3>0,21);
AA5:=SUM(AA3,AA4)/21;
AA6:=REF(AA3,1)=HHV(AA3,3) AND REF(AA3,1)>AA5*3 AND COUNT(C/REF(C,1)<0.9025,8)=0 AND LLV(L,3)/HHV(H,18)<0.88;
均线条件:=EMA(C,5)>=REF(EMA(C,5),1) ;
反转:=AA6 AND 进出量 AND 均线条件;
XG:FILTER(反转,3);
