2.今天上影線較長的k線(上影線比實體大兩倍,下影線較短的k線形態)上漲或下跌不到2%。
長上影:= ref ((min (close,open)-low)/(high-low),1) > 0.667和RANGE(REF(C,1)/REF(C,2),0.98,1.02);
長上影:= (high-max (close,open))/(high-low) > 0.667和RANGE(REF(C,1)/REF(C,2),0.98,1.02);
XG:長下影線,長上影線;