超跌选股

编写要求：

N=2 100 21TYP:=(HIGH+LOW+CLOSE)/3;CCI20:(TYP-MA(TYP,N))/(0.015*AVEDEV(TYP,N));超跌:-200,COLORGREEN;STICKLINE(CCI20<=-200,-200,-250,2,0),COLORBLUE;

解答：

{N=2 100 21}
TYP:=(HIGH+LOW+CLOSE)/3;
CCI20:=(TYP-MA(TYP,N))/(0.015*AVEDEV(TYP,N));
CCI20<=-200;