RSI：是利用一定时期内平均收盘涨数与平均收盘跌数的比值来分析市场的意向和实力，从而分析未来市场的走势。
LC:=REF(CLOSE,1);
RSI1:=SMA(MAX(CLOSE-LC,0),8,1)/SMA(ABS(CLOSE-LC),8,1)*100;
RSI2:=SMA(MAX(CLOSE-LC,0),55,1)/SMA(ABS(CLOSE-LC),55,1)*100;
XG:CROSS(RSI1,20) AND RSI2<=49;
XG2:RSI1>20 AND RSI1<40 AND RSI2>52;
