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自動劃線，很好計算 前一高 前二高，前一低 前二底
本公式對學習編寫公式的網友，有很好參考意義。

A1:=REF(HIGH,3)=HHV(HIGH,2*3+1);B1:=FILTER(A1,3);C1:=BACKSET(B1,3+1);D1:=FILTER(C1,3);{高點}A2:=REF(LOW,3)=LLV(LOW,2*3+1);B2:=FILTER(A2,3);C2:=BACKSET(B2,3+1);D2:=FILTER(C2,3);{低點}E1:=(REF(LLV(LOW,2*3),1)+REF(HHV(HIGH,2*3),1))/2;E2:=(HIGH+LOW)/2;{高低點出現在同一K線上時可作取舍}H1:=(D1 AND NOT(D2 AND E1>=E2)) OR ISLASTBAR OR BARSCOUNT(CLOSE)=1;H2:=D1 AND NOT(D2 AND E1>=E2);L1:=D2 AND NOT(D1 AND E1=E2);X1:=REF(BARSLAST(H1),1)+1;F1:=BACKSET(H1 AND COUNT(L1,X1)>0,LLVBARS(IF(L1,LOW,10000),X1));G1:=F1>REF(F1,1);I1:=BACKSET(G1,2);LD:=I1>REF(I1,1);{過濾后低點}L2:=LD OR ISLASTBAR OR BARSCOUNT(CLOSE)=1;X2:=REF(BARSLAST(L2),1)+1;F2:=BACKSET(L2 AND COUNT(H2,X2)>0,HHVBARS(IF(H2,HIGH,0),X2));G2:=F2>REF(F2,1);I2:=BACKSET(G2,2);HD:=I2>REF(I2,1);{過濾后高點}J1:=BACKSET(ISLASTBAR,MIN(BARSLAST(HD),BARSLAST(LD))+1);J2:=J1>REF(J1,1);A3:=H; B3:=REF(H,REF(BARSLAST(HD),1)+1)>REF(H,REF(BARSLAST(HD),1)+2+REF(BARSLAST(HD),REF(BARSLAST(HD),1)+2));D3:=A3 AND B3 AND HD;E3:=BACKSET(D3,REF(BARSLAST(HD),1)+2);HH:=E3>REF(E3,1);{找出全部長期高點}A4:=L>REF(L,REF(BARSLAST(LD),1)+1);B4:=REF(L,REF(BARSLAST(LD),1)+1); D4:=A4 AND B4 AND LD; E4:=BACKSET(D4,REF(BARSLAST(LD),1)+2); LL:=E4>REF(E4,1);{找出全部長期低點}DRAWICON(HH,H*1.01,8); DRAWICON(LL,L*0.999,7);H3:=HH OR ISLASTBAR OR BARSCOUNT(C)=1; {后面進行過濾，方法同前。只是不用考慮高低點出現在同一K線}X3:=REF(BARSLAST(H3),1)+1;F3:=BACKSET(H3 AND COUNT(LL,X3)>0,LLVBARS(IF(LL,L,POW(10,20)),X3));G3:=F3>REF(F3,1);I3:=BACKSET(G3,2);LZ:=I3>REF(I3,1); {長期低點，也可供引用}L4:=LZ OR ISLASTBAR OR BARSCOUNT(C)=1;X4:=REF(BARSLAST(L4),1)+1;F4:=BACKSET(L4 AND COUNT(HH,X4)>0,HHVBARS(IF(HH,H,-POW(10,20)),X4));G4:=F4>REF(F4,1);I4:=BACKSET(G4,2);HZ:=I4>REF(I4,1);{長期高點，也可供引用}K1:=BACKSET(ISLASTBAR,MIN(BARSLAST(HZ),BARSLAST(LZ))+1);K2:=K1>REF(K1,1);UU:=BACKSET(ISLASTBAR,BARSLAST(LD)+1);VV:=UU>REF(UU,1);WW:=BACKSET(VV,REF(BARSLAST(LD),1)+2);XX:=WW>REF(WW,1);UU2:=BACKSET(ISLASTBAR,BARSLAST(HD)+1);VV2:=UU2>REF(UU2,1);WW2:=BACKSET(VV2,REF(BARSLAST(HD),1)+2);XX2:=WW2>REF(WW2,1);{程序化久久公式網 m.weiqiv.net.cn}前一低:REF(L,BARSLAST(VV)),COLOR99FF66,LINETHICK1;前二低:REF(L,BARSLAST(XX)),COLOR99FF66,LINETHICK1;前一高:REF(H,BARSLAST(VV2)),COLORCYAN,LINETHICK1;前二高:REF(H,BARSLAST(XX2)),COLORCYAN,LINETHICK1;DRAWLINE(XX,L,VV,L,1),COLORMAGENTA,LINETHICK1;DRAWLINE(XX2,H,VV2,H,1),COLORMAGENTA,LINETHICK1;DRAWTEXT(CURRBARSCOUNT=5,前一低*0.995,'前一低'),COLOR99FF66;DRAWTEXT(CURRBARSCOUNT=5,前二低*0.995,'前二低'),COLOR99FF66;DRAWTEXT(CURRBARSCOUNT=1,前一高*1.01,'前一高'),COLORCYAN;DRAWTEXT(CURRBARSCOUNT=1,前二高*1.01,'前二高'),COLORCYAN;漲家數:INDEXADV,COLOR0080FF,NODRAW;跌家數:INDEXDEC,COLORGREEN,NODRAW;

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