RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100; K:=SMA(RSV,3,1); D:=SMA(K,3,1); J:=3*K-2*D-50; JR:=J-REF(J,1); ∑KDJ:SUM(JR,0),COLORGREEN,DOTLINE; IF(∑KDJ>REF(∑KDJ,1),∑KDJ,DRAWNULL),LINETHICK2,COLORRED; IF(J<0,∑KDJ,DRAWNULL),COLOR82004B,LINETHICK2; IF(K>90,∑KDJ,DRAWNULL),COLOR0000FF,LINETHICK2; IF(D>85,∑KDJ,DRAWNULL),COLORCD0000,LINETHICK2;