N:=5;
boll:=MA(CLOSE,N);
UB:=BOLL+2*STD(CLOSE,N);
LB:=BOLL-2*STD(CLOSE,N);
BOLL>=REF(BOLL,1) AND C>=BOLL AND L<=BOLL;
通达信BOLL中轨选股指标公式
来源：Internet，编辑：股旁网，2014-04-02
来源：Internet，编辑：股旁网，2014-04-02
N:=5;
boll:=MA(CLOSE,N);
UB:=BOLL+2*STD(CLOSE,N);
LB:=BOLL-2*STD(CLOSE,N);
BOLL>=REF(BOLL,1) AND C>=BOLL AND L<=BOLL;