金融市场本质上是一个非

线性系统，诸如混沌、分叉与分形等都是金融市场的非线性本质特征，而符号时

间序列分析方法与传统方法不同，能从大尺度的角度反映收益变化的特征，正适

合于分析非线性动力学系统-Financial markets is a nonlinear system, such as chaos, bifurcation and fractal are nonlinear essential characteristics of financial markets, while the symbolic time series analysis methods and traditional methods, from the perspective of large-scale reflect income changes characteristics, is suitable for analysis of nonlinear dynamical systems