我按照你说的试了一下,不过还是有问题,
reshape wide lgdp, i(code) j(year) (我用的是GDP的自然对数)
(note: j = 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 19971998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008)
gdp not constant within code
Type "reshape error" for a listing of the problem observations.
我输入reshape error后出来的是
i (code) indicates the top-level grouping such as subject id.
j (year) indicates the subgrouping such as time.
xij variable is lgdp.
Thus, the following variable(s) should be constant within i:
gdp
gdp not constant within i (code) for 31 values of i:
这样的情况该怎么办啊??
2# voodoo