波段顶底低点定位高点定位指标 通达信公式（附图）

TC1:=IF(H=HHV(H,75),H,DRAWNULL);

TC2:=CONST(BARSLAST(TC1=H))+1;

UPPER:=CONST(IF(TC2=1,H,REF(H,TC2-1)));

BC1:=IF(L=LLV(L,75),L,DRAWNULL);

BC2:=CONST(BARSLAST(BC1=L))+1;

LOWER:=CONST(IF(BC2=1,L,REF(L,BC2-1)));

LP:=CURRBARSCOUNT<=BC2 AND L=LOWER; {低点定位}

HP:=CURRBARSCOUNT<=TC2 AND H=UPPER; {高点定位}

DRAWTEXT(HP,H*0.990,'←波段顶'),COLORYELLOW; {波段顶文字提示}

DRAWTEXT(LP,L*1.002,'←波段底'),COLORMAGENTA; {波段底文字提示}

STICKLINE(IF(BC2>TC2,HP,LP),LOWER,UPPER,0,0),COLORCYAN; {波段顶底竖线条}

STICKLINE(IF(BC2>TC2,LP,HP),LOWER,UPPER,0,0),COLORMAGENTA; {波段顶底竖线条};

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