本指标采用系统自带波段之星加以改良，减少一部分干扰信号；结合量价参考对波段买点有指导作用。
{通达信波段星改编选股指标}
VAR1:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
VAR2:=SMA(VAR1,3,1);
VAR3:=SMA(VAR2,3,1);
VAR4:=3*VAR2-2*VAR3;
VAR5:=CROSS(VAR4,VAR2) AND VAR2<20;
VAR6:=CROSS(VAR2,VAR4) AND VAR2>80;
VAR7:=REF(VAR5,1) AND VAR2>REF(VAR2,1);
VAR8:=REF(VAR6,1) AND VAR2<REF(VAR2,1);
STICKLINE(VAR5,0,50,4,0),COLORRED;
STICKLINE(VAR6,50,100,4,0),COLORGREEN;
STICKLINE(VAR7,0,50,2,0),COLORYELLOW;
STICKLINE(VAR8,50,100,2,0),COLORBLUE;
DRAWICON(VAR5,30,1);
DRAWICON(VAR6,70,2);
DRAWICON(VAR7,20,1);
DRAWICON(VAR8,80,2);
波段星选股:VAR5 OR VAR7;
