原始数据:
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input int year float zp
- 2003 0
- 2003 0
- 2003 0
- 2003 0
- 2003 0
- 2004 0
- 2004 0
- 2004 0
- 2004 .1513
- 2004 0
- 2005 0
- 2005 0
- 2005 0
- 2005 .1934
- 2005 0
- 2006 0
- 2006 0
- 2006 0
- 2006 .0383
- 2006 0
- end
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input int year byte zp int year1 float zp1 int year2 float zp2 int year3 float zp3
- 2003 0 2004 0 2005 0 2006 0
- 2003 0 2004 0 2005 0 2006 0
- 2003 0 2004 0 2005 0 2006 0
- 2003 0 2004 .1513 2005 .1934 2006 .0383
- 2003 0 2004 0 2005 0 2006 0
- end