这是超跌反弹选股指标，核心逻辑是：当RSI指标（5日、8日、4.1日）从极低值（11/20）回升，且短期均线（3日）走强、成交量放大时，触发买入信号。操作上需满足3个条件中至少2个：1）RSI超卖后金叉；2）短期均线系统转强；3）动量指标出现底背离。适合短线快进快出，建议5%止损。
N1:=5;
N2:=8;
LC:=REF(CLOSE,1);
RSI1:=SMA(MAX(CLOSE-LC,0),N1,1)/SMA(ABS(CLOSE-LC),N1,1)*100;
RSI2:=SMA(MAX(CLOSE-LC,0),N2,1)/SMA(ABS(CLOSE-LC),N2,1)*100;
XG1:=CROSS(RSI1,20) AND (CROSS(RSI1,RSI2) AND RSI1< 50);
HG1:=MA(C,3)=HHV(MA(C,3),7);
HG2:=MA(C,3)>MA(C,5);
HG3:=MA(V,5)>MA(V,10)*1.01;
HG4:=COUNT(MA(C,1)>REF(C,1),2)=2;
LC20:=REF(CLOSE,1);
RSI20:=SMA(MAX(CLOSE-LC20,0),4.1,1)/SMA(ABS(CLOSE-LC20),4.1,1)*100;
XG2:=CROSS(RSI20,11)*1,COLORRED;
VAR3A:=3;
VAR2A:=3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1);
MTM:=C-REF(C,1);
DX:=100*EMA(EMA(MTM,6),6)/EMA(EMA(ABS(MTM),6),6);
YXF:=IF(LLV(DX,2)=LLV(DX,7) AND COUNT(DX< 0,2) AND CROSS(DX,MA(DX,2)),1,0);
XG3:=IF(FILTER(YXF=1,5),1,0);
A51:=3*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1)-2*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1);
FY:=EMA(A51,5);
A54:=((C-LLV(L,21))/(HHV(H,21)-LLV(L,21)))*100;
QS:=(MA(3*SMA(A54,6,1)-2*SMA(SMA(A54,5,1),5,1),2));
选股:(XG1+XG2+XG3)>=2;
