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st: csipolate not csipolating
From
Michael Mulcahy <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: csipolate not csipolating
Date
Sun, 20 May 2012 06:30:27 -0700 (PDT)
Hi,
I'm trying to use csipolate to interpolate missing values for 1 year in a panel dataset of city-year observations. None of my cities have observations for 1997, they all have observations on the variable in question for 1992 thru 2002. I'm writing:
by id: csipolate dues year if year > 1991, gen(csipdues)
The new variable, "ipdues", has missing values for 1997.
The cipolate command (with analogous syntax), on the other hand, works. I can just use the "cipdues", but I wanted to compare that to the csipolate result.
Am I not understanding some "no singleton values" issue here?
Thanks for your consideration!
Mike
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