KD反向公式
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编写要求：

公式为：{试验参数j1(-50,-50,120)}n:=9;m1:=3;m2:=3;RSV:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;K:=SMA(RSV,M1,1);D:=SMA(K,M2,1);J:=3*K-2*D;k1:1/3*rsv+ref(k,1)/3*2;d1:1/3*k+ref(d,1)/3*2;Jj:3*K1-2*D1;j11:=j;j昨:=ref(jj,1);jx:=if(j1=-50,j11,if(j1=-49,j昨,j1));xxx:((9/7*jx-2*ref(k1,1)+12/7*ref(d1,1))/100)*(HHV(HIGH,9)-LLV(LOW,9))+LLV(LOW,9),colorred;DRAWTEXT(CURRBARSCOUNT=58 AND j1=-50,k,'设J=-50,所演即时股价;'),colorc0c0c0;DRAWTEXT(CURRBARSCOUNT=58 AND j1=-49,k,'设J=-49,J线拐头股价;'),colorc0c0c0;DRAWTEXT(CURRBARSCOUNT=58 AND j1=jx,k,'设J=自定义,J线达标临界股价;'),colorc0c0c0;

解答：

 n:=9;m1:=3;m2:=3;

rsv:=(c-llv(l,n))/(hhv(h,n)-llv(l,n))*100;
k:=sma(rsv,m1,1);
d:=sma(k,m2,1);
j:=3*k-2*d;
 
k1:1/3*rsv+ref(k,1)/3*2;
d1:1/3*k+ref(d,1)/3*2;
jj:3*k1-2*d1;
 
j对应昨d推演价:((9/7*ref(d1,1)-2*ref(k1,1)+12/7*ref(d1,1))/100)*(hhv(h,9)-llv(l,9))+llv(l,9),colorred,linethick;
 

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