老鸭头MA5: MA(CLOSE,5),colorwhite;
MA10: MA(CLOSE,10),coloryellow;
MA60:MA(CLOSE,60),colorblue;
pday1 := BARSLAST(CROSS(ma5,ma60));{5日均线上穿60日均线}
pday2 := BARSLAST(CROSS(ma10,ma60));{10日均线上穿60日均线，至此形成鸭颈部}
pday3 := BARSLAST(HIGH=HHV(HIGH,pday2));{形成头部，要下跌}
pday4 := BARSLAST(CROSS(ma10,ma5));{下跌后，5日均线和10日均线死叉}
pday5 := BARSLAST(CROSS(ma5,ma10));{回落不久，5日均线和10日均线形成金叉，形成部}
a1:= pday1>pday2 and pday2>pday3 and pday3>pday4 and pday4>pday5 and pday5<5;
a2:= COUNT(CROSS(ma10,ma5),pday2)=1;
aa:=IF(A1 AND A2 and MA(CLOSE,5)>=MA(CLOSE,10) and MA(CLOSE,10)>MA(CLOSE,60),10,0),;
bb:=FILTER( A1 AND A2 and MA(CLOSE,5)>=MA(CLOSE,10) and MA(CLOSE,10)>MA(CLOSE,60),5);
DRAWTEXT(aa and bb ,LOW*0.98,'老鸭头'),colorblue;
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