- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input byte(province city county) int year byte zhi
- 1 10 1 2000 8
- 1 10 1 2001 9
- 1 10 1 2002 7
- 1 10 2 2000 3
- 1 10 2 2001 4
- 1 10 2 2002 5
- 1 10 3 2000 2
- 1 10 3 2001 4
- 1 10 3 2002 6
- 1 11 4 2000 11
- 1 11 4 2001 12
- 1 11 4 2002 13
- 1 11 5 2000 8
- 1 11 5 2001 4
- 1 11 5 2002 7
- 1 11 6 2000 4
- 1 11 6 2001 9
- 1 11 6 2002 6
- end
资料如上,有province\city\county等多个变量,如何取滞后性?


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