第一个数据为主数据,2009年的数据有缺漏值。第二个数据含有各个体2009年的数据。请问如何操作实现两数据合并以填充缺漏值呢?
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input str4 NAME int YEAR byte ZHI long newname
- "0001" 2008 1 1
- "0001" 2009 . 1
- "0001" 2010 3 1
- "0002" 2008 3 2
- "0002" 2009 . 2
- "0002" 2010 6 2
- "0003" 2008 5 3
- "0003" 2009 . 3
- "0003" 2010 8 3
- end
- label values newname newname
- label def newname 1 "0001", modify
- label def newname 2 "0002", modify
- label def newname 3 "0003", modify
复制代码
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input str4 NAME int YEAR byte ZHI long newname
- "0001" 2009 3 1
- "0002" 2009 5 2
- "0003" 2009 5 3
- end
- label values newname newname
- label def newname 1 "0001", modify
- label def newname 2 "0002", modify
- label def newname 3 "0003", modify
复制代码