通达信压撑线指标公式

{压撑线 N 1 100 5}
 Z1:=STRCAT(HYBLOCK,' ');
 Z2:=STRCAT(Z1,DYBLOCK);
 Z3:=STRCAT(Z2,' ');
 DRAWTEXT_FIX(ISLASTBAR,0,0,0,STRCAT(Z3,GNBLOCK)),COLOR00C0C0;
 A1:=REF(H,N)=HHV(H,2*N+1);
 B1:=FILTER(A1,N);
 C1:=BACKSET(B1,N+1);
 D1:=FILTER(C1,N);
 A2:=REF(L,N)=LLV(L,2*N+1);
 B2:=FILTER(A2,N);
 C2:=BACKSET(B2,N+1);
 D2:=FILTER(C2,N);
 E1:=(REF(LLV(L,2*N),1)+REF(HHV(H,2*N),1))/2;
 E2:=(H+L)/2;
 H1:=(D1 AND NOT(D2 AND E1>=E2)) OR ISLASTBAR OR BARSCOUNT(C)=1;
 L1:=(D2 AND NOT(D1 AND E1<E2));
 H2:=D1 AND NOT(D2 AND E1>=E2);
 X1:=REF(BARSLAST(H1),1)+1;
 F1:=BACKSET(H1 AND COUNT(L1,X1)>0,LLVBARS(IF(L1,L,10000),X1));
 G1:=F1>REF(F1,1);
 I1:=BACKSET(G1,2);
 LD:=I1>REF(I1,1);
 L2:=LD OR ISLASTBAR OR BARSCOUNT(C)=1;
 X2:=REF(BARSLAST(L2),1)+1;
 F2:=BACKSET(L2 AND COUNT(H2,X2)>0,HHVBARS(IF(H2,H,0),X2));
 G2:=F2>REF(F2,1);
 I2:=BACKSET(G2,2);
 HD:=I2>REF(I2,1);
 R1:=BACKSET(ISLASTBAR,BARSLAST(HD)+1);
 S1:=R1>REF(R1,1);
 T1:=BACKSET(ISLASTBAR,BARSLAST(LD)+1);
 U1:=T1>REF(T1,1);
 R2:=BACKSET(S1,REF(BARSLAST(HD),1)+2);
 S2:=R2>REF(R2,1);
 T2:=BACKSET(U1,REF(BARSLAST(LD),1)+2);
 U2:=T2>REF(T2,1);
 NOTEXT1:DRAWLINE(S2,H,S1,H,1),LINETHICK2,COLORRED;
 NOTEXT2:DRAWLINE(U2,L,U1,L,1),LINETHICK2,COLORGREEN;