2 Sep
2009
2 Sep
'09
11:37 a.m.
On 09/02/2009 12:20 AM, Donald Braman wrote:
I can't seem to subscribe to the MatchIt list, so
I'm posting here in
hopes that the same people read both.
I'm working with multiply imputed data from Amelia & wondering if any
progress has been made at integrating Amelia, MatchIt, and Zelig -- in
particular, pre-processing multiply imputed data and preparing them
for use in Zelig.
Not at all pressing, and (again) apologies for posting here rather
than the MatchIt list.
Cheers, Don
At the moment, MatchIt doesn't allow missing data on input (unless you
temporarily code it as observed and exact match on the missing values).
In part, this is because most matching algorithms don't have procedures
to deal with missingness. An exception is CEM which has a procedure for
multiply imputed data, but to access that you'll need to use the (R or
Stata) version of CEM directly (see http://gking.harvard.edu/cem)
instead of the one in MatchIt.
(separate message coming to fix your matchit subscription...)
Gary
---
Gary King
Albert J. Weatherhead III University Professor
Director, Institute for Quantitative Social Science
Harvard University, 1737 Cambridge St, Cambridge, MA 02138
http://GKing.Harvard.Edu, King(a)Harvard.Edu
Direct 617-495-2027, Assistant 495-9271, eFax 812-8581
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