st: filling in missing values

[Thushyanthan Baskaran <baskaran@staff.uni-marburg.de>]

Hello!

I have some panel data on educational attainment which is organized in 
5-year intervals.
(e.g.
	

	country		year 	edu

	UK  		1960 	10
	UK  		1965 	20
	.
	.	
	USA 		1960 	12
	USA 		1965 	15

	etc.)

However, for the particular model I want to estimate, I also need 
observations in between the intervals (i.e. for 1961, 1962,...). 
Therefore, I would like to "create" these observations by 
"extrapolating" them "linearly".

( i.e. by calculating

edu1961 = edu1960 + ((edu1965-edu1960)/5)*1,
edu1962 = edu1960+((edu1965-edu1960)/5)*2 ,
...
edu1997 = edu1995 + ((edu2000-edu1995)/5) * 2 )

Is there some build-in command in STATA for this task or do I have to 
write a special do-file?

Many thanks in advance for your help...


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