I think someone will post a much more elegant
solution, but I think this will work:
gen indicator=1 if year==1965
replace indicator=2 if year==1970
sort countrycode indicator
by countrycode: gen diff=gdp[2]-gdp[1]
--- Kakatua Kutta <[email protected]> wrote:
> countrycode���������� year������������ gdp
> BAN 1960 65
> BAN 1965 75
> BAN 1970 85
> CAN 1960 25
> CAN 1965 35
> CAN 1970 45
>
> Dear Stata users,
> Lets say I have the above data set. I want� to
> create a variable which measures the difference
> between the gdp in year 1970 and gdp in 1965 for
> each country. That is if "diff" is the new variable
> it would be diff = gdp(1970)-gdp (1965) for each
> country.
> I am a new user and already spent hours on this. I
> would much appreciate your help.
> Thanks in advance
> AmBush
> --
>
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