通达信可以准确判断趋势顶底的指标
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{N1:2,120,5;N2:2,250,10;N3:2,500,20;}  
{参数:P:1,20,3;}{支撑压力线的周期参数 P可调}  
STICKLINE(C>0,0,30,10,0),COLOR353535;  
STICKLINE(C>0,30,50,10,0),COLOR454545;  
STICKLINE(C>0,50,80,10,0),COLOR555555;  
STICKLINE(C>0,80,95,10,0),COLOR757575;  
强弱线:50,LINETHICK2,COLOR858585;  
警示线:80,POINTDOT,COLORCYAN;  
减仓线:90,COLOR00AA55,LINETHICK2;  
清仓线:95,COLOR0000AA,LINETHICK2;  
LC:=REF(CLOSE,1);  
RSI5:SMA(MAX(CLOSE-LC,0),N1,1)/SMA(ABS(CLOSE-LC),N1,1)*100,NODRAW,COLORFFAAFF;  
RSI10:SMA(MAX(CLOSE-LC,0),N2,1)/SMA(ABS(CLOSE-LC),N2,1)*100,NODRAW,COLORDDAADD;  
RSI20:SMA(MAX(CLOSE-LC,0),N3,1)/SMA(ABS(CLOSE-LC),N3,1)*100,NODRAW,COLORAA99AA;  
DRAWBAND(RSI5,RGB(195,125,195),RSI10,RGB(0,130,50));  
DRAWBAND(RSI10,RGB(165,95,165),RSI20,RGB(0,100,20));  
{金叉死叉}  
金叉:CROSS(RSI5,RSI20) AND CROSS(RSI10,RSI20),COLORRED,NODRAW;  
DRAWTEXT(金叉,RSI5,'←'),COLORRED;  
死叉:CROSS(RSI20,RSI10) AND CROSS(RSI20,RSI5),COLORGREEN,NODRAW;  
DRAWTEXT(死叉,RSI5,'←'),COLORGREEN;  
{RSI顶底背离}  
RS:=BARSLAST(REF(CROSS(RSI20,RSI5),1));  
RS1:=REF(CLOSE,RS+1)<CLOSE AND REF(RSI5,RS+1)>RSI5 AND CROSS(RSI20,RSI5);  
顶背离:IF(RS1,RSI5,DRAWNULL),CIRCLEDOT,COLORFFCC00;  
STICKLINE(RS1,RSI5,RSI5*0.9,0,0),COLORFFCC00;  
DRAWTEXT(RS1,RSI5*0.9,'顶背离'),COLORFFCC00;  
S1:=BARSLAST(REF(CROSS(RSI5,RSI20),1));  
S1A:=REF(CLOSE,S1+1)>CLOSE AND RSI5>REF(RSI5,S1+1) AND   
CROSS(RSI5,RSI20);  
底背离:IF(S1A,RSI5,DRAWNULL),CIRCLEDOT,COLOR6699FF;  
STICKLINE(S1A,RSI5,RSI5*1.1,0,0),COLOR6699FF;  
DRAWTEXT(S1A,RSI5*1.1,'底背离'),COLOR6699FF;  
{RSI划线}  
OB:=RSI5;  
A1:=REF(OB,P)=HHV(OB,2*P+1);  
B1:=FILTER(A1,P);  
C1:=BACKSET(B1,P+1);  
D1:=FILTER(C1,P);{高点}  
A2:=REF(OB,P)=LLV(OB,2*P+1);  
B2:=FILTER(A2,P);  
C2:=BACKSET(B2,P+1);  
D2:=FILTER(C2,P);{低点}  
R11:=BACKSET(ISLASTBAR,BARSLAST(D1)+1);   
S11:=R11>REF(R11,1);  
压力线:DRAWLINE(D1,OB,S11,OB,1),LINETHICK1,COLORCC33CC;  
T11:=BACKSET(ISLASTBAR,BARSLAST(D2)+1);  
U11:=T11>REF(T11,1);  
支撑线:DRAWLINE(D2,OB,U11,OB,1),COLOR00CCCC;  
 
DRAWTEXT(CURRBARSCOUNT=30,25,'强弱用来看趋势 背离用来看顶底'),COLORCC99FF;  
DRAWTEXT(CURRBARSCOUNT=30,15,'支撑压力辨起落 设定周期参数 P'),COLORCC99FF;
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