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采用AAFT得到一组替代数据,然后计算原始时间序列和替代数据的相关系数r,当相关系数r<0.05时,替代数据序列和原始序列的相关性不大,舍弃这个替代数据序列,继续寻找新的替代数据序列,直到找到一个适合的替代数据。
时间: 2024-12-29 23:56:00