MACD钝化结构形成选股预警 通达信 附图

SHORT:=12;LONG:=26;MID:=9;
 DIF:=100*(EMA(CLOSE,SHORT)-EMA(CLOSE,LONG));
 DEA:=EMA(DIF,MID);
 MACD:=(DIF-DEA)*2;
 {底部结构预警}
死叉:=CROSS(DEA,DIF);
 N1:=BARSLAST(死叉),NODRAW;{最近一次死叉的位置}
N2:=REF(BARSLAST(死叉),N1+1),NODRAW;{倒数第二次死叉与倒数第一次死叉的区间}
N3:=REF(BARSLAST(死叉),N2+N1+2),NODRAW;{倒数第三次死叉与倒数第二次死叉的区间}
CL1:=LLV(C,N1+1),NODRAW;{最近一次死叉后，最低收盘价}
DIFL1:=LLV(DIF,N1+1),NODRAW;
 CL2:=REF(CL1,N1+1),NODRAW;{倒数第二次死叉与倒数第一次死叉之间的最低收盘价}
DIFL2:=REF(DIFL1,N1+1),NODRAW;
 CL3:=REF(CL2,N1+1),NODRAW;{倒数第三次死叉与倒数第二次死叉之间的最低收盘价}
DIFL3:=REF(DIFL2,N1+1),NODRAW;
 PDIFL2:=IF(DIFL2>0,INTPART(LOG(DIFL2))-1,INTPART(LOG(-DIFL2))-1);
 MDIFL2:=INTPART(DIFL2/POW(10,PDIFL2));
 PDIFL3:=IF(DIFL3>0,INTPART(LOG(DIFL3))-1,INTPART(LOG(-DIFL3))-1);
 MDIFL3:=INTPART(