双底背离（源码 副图）

{双底背离,柱加线}
DIF:=EMA(C,12)-EMA(C,26);
DEA:=EMA(DIF,9);
MACD:=2*(DIF-DEA);
QZQ:=BARSLAST(REF(MACD,1)<0 AND MACD>0);
QM:=LLVBARS(MACD,QZQ+20);
MQDZ:=IF(QM>QZQ,REF(MACD,QM),0);
QF:=LLVBARS(DIF,QZQ+20);
DQDZ:=IF(QF>QZQ,REF(DIF,QF),0);
XG1:=MACD<0 AND MACD>MQDZ AND DIF<0 AND DIF>DQDZ AND C=LLV(C,QZQ+20) AND MQDZ<0 AND DQDZ<0;
XG:REF(XG1,1)=1 AND MACD>REF(MACD,1);

S05:=SUM(MACD,0);
QST:=BARSLAST(MACD<0 AND REF(MACD,1)>0)+1;
QXT:=BARSLAST(MACD>0 AND REF(MACD,1)<0)+1;
S5:=IF(MACD>0,S05-REF(S05,BARSLAST(MACD<0)),S05-REF(S05,BARSLAST(MACD>0)))/10;
ST:=IF(MACD>0,REF(QST,QXT)+QXT,REF(QXT,QST)+QST);
RS5:=REF(S5,ST);
BC:IF(MACD>0 AND S5RS5 AND DEA<0,1,0));