各位大神,我在分析20年的面板数据,其中有部分年份某一项重要变量含有缺失值,必须删除。如何才能同时删除其他年份中相同的id数据,以保持面板数据中的每个变量20年的连续性。谢谢。下图是我查找到需要删除的含有缺失值的id。手动删除太过繁杂,请问是否有简便的命令语句,请赐教,谢谢
list id year Income if Income==.
+--------------------------+
| id year Income |
|--------------------------|
84613. | 13001035 2003 . |
84640. | 13001072 2003 . |
84805. | 13004008 2003 . |
84865. | 13005010 2003 . |
85291. | 14003057 2003 . |
|--------------------------|
85345. | 14004061 2003 . |
85487. | 14006045 2003 . |
85689. | 14010021 2003 . |
87379. | 35006001 2003 . |
87565. | 35009031 2003 . |
|--------------------------|
87682. | 37005005 2003 . |
87944. | 41001012 2003 . |
88903. | 42006064 2003 . |
88914. | 42007001 2003 . |
89732. | 45001075 2003 . |
|--------------------------|
89848. | 45008019 2003 . |
89885. | 45009022 2003 . |
90095. | 51002016 2003 . |
90118. | 51002044 2003 . |
90419. | 13003054 2004 . |
|--------------------------|
90433. | 13003074 2004 . |
92856. | 34009014 2004 . |
93497. | 37011014 2004 . |
93831. | 41005022 2004 . |
93913. | 41007092 2004 . |
|--------------------------|
95745. | 51001050 2004 . |
95764. | 51002027 2004 . |
95909. | 13001001 2005 . |
96188. | 13005015 2005 . |
97245. | 22005003 2005 . |
|--------------------------|
98135. | 34001052 2005 . |
98696. | 35004050 2005 . |
99339. | 41002024 2005 . |
100138. | 42004020 2005 . |
100290. | 42007060 2005 . |
|--------------------------|
100385. | 42010032 2005 . |
100479. | 42013051 2005 . |
100574. | 42016046 2005 . |
100622. | 43004014 2005 . |
103037. | 22010049 2006 . |
|--------------------------|
103043. | 23001005 2006 . |
103801. | 34001060 2006 . |
103851. | 34003016 2006 . |
104424. | 35007009 2006 . |
105211. | 41007046 2006 . |
|--------------------------|
105549. | 41014062 2006 . |
107992. | 14005005 2007 . |
108048. | 14005061 2007 . |
108729. | 23001032 2007 . |
109457. | 34001057 2007 . |
|--------------------------|
109459. | 34001059 2007 . |
109466. | 34001067 2007 . |
109759. | 34006055 2007 . |
109832. | 34009009 2007 . |
110260. | 35009092 2007 . |
|--------------------------|
110475. | 37011015 2007 . |
110818. | 41005034 2007 . |
111223. | 41014091 2007 . |
111795. | 42013038 2007 . |
111836. | 42015022 2007 . |
|--------------------------|
111871. | 42015092 2007 . |
112692. | 51001017 2007 . |
112770. | 51003032 2007 . |
112771. | 51003042 2007 . |
112847. | 51012017 2007 . |
|--------------------------|
114219. | 22001035 2008 . |
114832. | 33001003 2008 . |
115752. | 35007019 2008 . |
116127. | 37011006 2008 . |
116459. | 41005013 2008 . |
|--------------------------|
116489. | 41005046 2008 . |
116699. | 41011029 2008 . |
117413. | 42012042 2008 . |
117493. | 42015019 2008 . |
117522. | 42015078 2008 . |
|--------------------------|
117752. | 43014006 2008 . |
118711. | 13003050 2009 . |
118871. | 13005073 2009 . |
119282. | 14004032 2009 . |
119633. | 14010010 2009 . |
|--------------------------|
119635. | 14010013 2009 . |
119636. | 14010014 2009 . |
119864. | 21012332 2009 . |
120406. | 31001016 2009 . |
120407. | 31001019 2009 . |
|--------------------------|
120408. | 31001022 2009 . |
120531. | 33001050 2009 . |
121206. | 34010008 2009 . |
121208. | 34010010 2009 . |
121480. | 35007091 2009 . |
|--------------------------|
121794. | 37011016 2009 . |
121975. | 41002024 2009 . |
122084. | 41004044 2009 . |
122149. | 41005047 2009 . |
122154. | 41007002 2009 . |
|--------------------------|
122453. | 41013010 2009 . |
122468. | 41013027 2009 . |
122790. | 42004039 2009 . |
123205. | 42016033 2009 . |
124418. | 13004008 2010 . |
|--------------------------|
125146. | 14008024 2010 . |
126816. | 34009021 2010 . |
126818. | 34009023 2010 . |
127448. | 37011011 2010 . |
127717. | 41004013 2010 . |
|--------------------------|
127954. | 41009066 2010 . |
128085. | 41012028 2010 . |
128100. | 41012043 2010 . |
128421. | 42004007 2010 . |
128794. | 42014028 2010 . |
|--------------------------|
129320. | 44008050 2010 . |
+--------------------------+
.


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