嗯,我想用一些数据进行回归,得到想要的回回方程。可是以上所得结果不知道是不是只能得到一个方程。如果是的话就不到预期的结果,也就无法进一步分析。(有人用了类似的数据得到了可行的结果)。原始数据如下:
年份 LNGDP LNIM LNEX LNINV LNCS
1980 8.331165922 5.60902009 5.512102193 6.723678758 7.907614634
1981 8.377943613 5.790373637 5.790101639 6.751080657 7.987537777
1982 8.444041284 5.741985524 5.888232927 6.977944761 8.062012033
1983 8.540100023 5.887527519 5.925899859 7.108495902 8.142157803
1984 8.703907708 6.246538769 6.179902965 7.329667855 8.270160054
1985 8.813101917 6.840725429 6.399281287 7.544784397 8.364553142
1986 8.873460193 6.948137983 6.622710449 7.681832142 8.42204978
1987 8.948346388 6.938070159 6.844493082 7.792045149 8.467605775
1988 8.98168051 6.991502958 6.84029185 7.830122748 8.507634424
1989 9.029053752 6.984198249 6.866687916 7.679751732 8.552528128
1990 9.065299768 7.08137457 7.229664636 7.643644975 8.566352973
1991 9.185283725 7.325565675 7.444280005 7.823956641 8.678282592
1992 9.333745781 7.531632055 7.58274191 8.12963896 8.809825193
1993 9.465837314 7.692544257 7.567922212 8.473582924 8.907883509
1994 9.560383329 7.985512469 8.030825124 8.522612111 8.97517798
1995 9.620422824 7.931499573 8.051106296 8.525937913 9.044808297
1996 9.69990161 7.896698766 7.981194883 8.583735983 9.138349791
1997 9.779330311 7.89049208 8.140548406 8.638358898 9.196426414
1998 9.848926822 7.8830463 8.152640585 8.776401161 9.267220336
1999 9.926804006 8.064086265 8.226563698 8.840379637 9.35049859
2000 10.02485305 8.36512636 8.466840517 8.836223547 9.439931297
2001 10.11575497 8.43665303 8.5251432 9.0496636 9.509298448
2002 10.22096095 8.636857834 8.734939041 9.213792538 9.580964857
2003 10.33567232 8.961206638 9.020594009 9.446692138 9.64038504
2004 10.463459 9.228942062 9.28479759 9.646163439 9.547149479
2005 10.58845808 9.367080676 9.510574266 9.859130221 9.638779487
2006 10.71997766 9.507166123 9.709565083 10.05853103 9.746037558
2007 10.83857626 9.605549954 9.84868674 10.23354264 9.847204435
我想得到回归方程进行分析,可是得不到可行的方程。可行的意思是表达式右边的系数都为正数。由于本人为了做毕业论文,刚刚学EVIEWS软件几天,很多东西部懂,请各位帮忙,非常感谢。I
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