. help tsset
and look at linked sections in the help and the
manual.
You won't be able to do anything useful with
xt data until you learn this material.
Nick
[email protected]
[email protected]
> Does anyone know how can I create lags when I am using a long
> format xt
> dataset eg:
> Id year var1 var2 ......
> 12 1
> 12 2
> 12 3
> 12 4
> 13 1
> 13 2
> 13 3
> 13 4
> If I use the command generate xlag= x[_n-1] then this will
> only create one
> missing value at the first observation for the individual
> with the personal
> identification mumber 12 and none for the rest- hence -this mixes up
> different individuals' observations.
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