具有交叉递归图的二元数据的非线性分析
Nonlinear analysis of bivariate data with cross recurrence plots
摘要:
我们使用的方法的递归图交叉递归图(CRP),使非线性分析的双变量数据的扩展。为了量化CRPs,我们主要基于CRPs中的对角结构进一步开发了三种复杂性度量。具有非线性相互作用的原型模型系统的CRP分析表明,该技术能够从二元时间序列中找到这些非线性相互关系,而线性相关性检验则不能。将CRP分析应用于气候数据,我们发现降雨和厄尔尼诺数据之间存在复杂的关系。
英文摘要:
We use the extension of the method of recurrence plots to cross recurrence plots (CRP) which enables a nonlinear analysis of bivariate data. To quantify CRPs, we develop further three measures of complexity mainly basing on diagonal structures in CRPs. The CRP analysis of prototypical model systems with nonlinear interactions demonstrates that this technique enables to find these nonlinear interrelations from bivariate time series, whereas linear correlation tests do not. Applying the CRP analysis to climatological data, we find a complex relationship between rainfall and El Nino data.
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