通达信利用撑压线和MACD自动画线判趋势的心得
主要是看是否产生背离现象。
撑压线-主图源码：
{参数 N 1 50 5}
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,0),LINETHICK2,COLORRED;
NOTEXT2:DRAWLINE(U2,L,U1,L,0),LINETHICK2,COLORGREEN;
MACD自动画线-副图源码：
{参数 P 1 50 5}
DIF:=EMA(CLOSE,21)-EMA(CLOSE,57);
DEA:=EMA(DIF,25);
MACD:(DIF-DEA)*2,COLORWHITE;
MACDZ:(DIF-DEA)*2,COLORSTICK;
OBV:=MACD;
A1:=REF(OBV,P)=HHV(OBV,2*P+1);
B1:=FILTER(A1,P);
C1:=BACKSET(B1,P+1);
D1:=FILTER(C1,P);
A2:=REF(OBV,P)=LLV(OBV,2*P+1);
B2:=FILTER(A2,P);
C2:=BACKSET(B2,P+1);
D2:=FILTER(C2,P);
上:REF(OBV,BARSLAST(D1)),COLORRED,NODRAW;
下:REF(OBV,BARSLAST(D2)),COLORGREEN,NODRAW;
R11:=BACKSET(ISLASTBAR,BARSLAST(D1)+1);
S11:=R11>REF(R11,1);
DRAWLINE(D1,OBV,S11,OBV,0),COLORRED,LINETHICK2;
T11:=BACKSET(ISLASTBAR,BARSLAST(D2)+1);
U11:=T11>REF(T11,1);
DRAWLINE(D2,OBV,U11,OBV,0),COLORGREEN,LINETHICK2;
