两个不平稳的序列经过一阶差分之后变成平稳序列,现在想要建立这两个序列之间的关系,该怎么建模呢?比如沪深两市的月平均收盘价?
数据如下:
96.99000 378.7400
40.98000 109.2900
-0.730000 164.7600
141.9200 331.7000
201.0800 444.0000
30.91000 9.560000
-59.48000 -354.7600
45.91000 231.9400
93.78000 147.9400
85.57000 295.2000
261.3000 1045.020
576.1800 980.1400
110.8700 985.8000
94.73000 406.7600
302.9100 509.5000
657.2900 2316.680
268.3800 2078.350
-288.9500 -397.7800
650.3300 2653.110
747.8000 2672.550
333.4700 992.4400
402.4700 666.6000
-1082.990 -3893.490
389.7800 2062.960
-878.1700 -1842.910
-34.85000 -33.83000
-875.8300 -2521.740
220.4000 202.7400
-259.7600 -1456.640
-697.2500 -2677.460
39.62000 99.55000
-378.3500 -1466.090
-103.5900 -444.9700
-564.9900 -1719.940
142.3700 819.1800
-50.35000 -173.0000
169.8500 529.7300
92.19000 592.9800
290.3600 1373.730
104.3600 520.5700
155.3600 625.4000
326.4300 1438.690
452.7000 2104.110
-744.3100 -3085.640
111.6800 621.7700
216.4200 1090.310
199.4500 1189.610
81.84000 213.2000
-287.8500 -1562.770
62.65000 299.4600
57.17000 57.69000
-238.5000 -1331.810


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