大智慧选股如何选j 值为负

.RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
K:=SMA(RSV,3,1);
D:=SMA(K,3,1);
J:=3*K-2*D;
选股:llv(j,5)<0 and j>REF(j,1);