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st: RE: filling in missing panel data as a trend line
This sounds like linear interpolation: see -ipolate-.
Panel data should be interpolated separately -by <panelid>:-.
But note that if "education" means something like "years
of education", then that case too is discussed in the
FAQ you cite in its last section, at least for people
who stay in the system and progress a year at a time.
People who repeat a year or take years out of the system
are naturally a complication.
Jason Yackee, PhD Candidate; J.D.
> For my panel data set I have a variable ("education") that
> has only been
> collected every five years. My data set is otherwise annual; I would
> like to fill in the missing data for "education" on the basis of a
> regression/trend line between each five-year observation, rather than
> using the "cascade" method detailed in this faq:
> http://www.stata.com/support/faqs/data/missing.html. I don't
> see a way
> to do what I want to do using -impute-. Would someone be able to
> suggest an appropriate approach?
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