clear
input ID year var1 var2 var3
1 2006 34 45 65
1 2007 45 43 41
1 2007 3 56 59
1 2008 39 54 76
1 2009 41 57 68
end
save "data00.dta", replace
use "data00.dta", clear
*-删除重复值 (数据有误)
. drop if year == 2007
. tsset ID year
. tsfill
. list
// +--------------------------------+
// | ID year var1 var2 var3 |
// |--------------------------------|
// 1. | 1 2006 34 45 65 |
// 2. | 1 2007 . . . |
// 3. | 1 2008 39 54 76 |
// 4. | 1 2009 41 57 68 |
// +--------------------------------+
*-填充缺失值：
forv i = 1/3 {
tssmooth ma v`i' = var`i' , w(1, 0, 1)
replace var`i' = v`i' if var`i' == .
}
drop v?
list
//
// +--------------------------------+
// | ID year var1 var2 var3 |
// |--------------------------------|
// 1. | 1 2006 34 45 65 |
// 2. | 1 2007 36.5 49.5 70.5 |
// 3. | 1 2008 39 54 76 |
// 4. | 1 2009 41 57 68 |
// +--------------------------------+
标签：填充,手工,+--------------------------------+,45,41,2007,STATA,year,ID From： https://www.cnblogs.com/xkdn/p/17217544.html