趋势转折-无未来的转折线（付飞狐源码）

{通达信用的:}   

{INPUT: N(3,1,100);}   

N:=3;   

{转折}   

Z_1:=(EMA(C,N)-REF(EMA(C,N),1))/REF(EMA(C,N),1)*100;   

Z_2:=IF(Z_1<0,REF(Z_1,BARSLAST(CROSS(0,Z_1))+1),0);   

Z_3:=IF(Z_1>0,REF(Z_1,BARSLAST(CROSS(0,Z_1))+1),0);   

Z_4:=IF(CROSS(0,Z_1),H,L);   

  

DRAWLINE(CROSS(Z_2,Z_3),H,CROSS(Z_3,Z_2),L,0),LINETHICK2,COLORWHITE;   

DRAWLINE(CROSS(Z_3,Z_2),L,CROSS(Z_2,Z_3),H,0),LINETHICK2,COLORMAGENTA;   

DRAWLINE(CROSS(0,Z_1)||CROSS(Z_1,0),Z_4,ISLASTBAR,Z_4,0),LINETHICK2,COLORGREEN;