Hi all,
Two questions. First, can Amelia be used to impute questions that are not
observed in dataset "A" from dataset "B" e.g., Gelman and King (1998)?
Second, if so, is it appropriate to do so with pooled data. Is it
possible, for instance, to impute the altruism questions from the 2002 GSS
into pooled ANES data that combined the 2002 with 2004 ANES?
Thanks in advance for your advice.
cp
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I thought some of you might be interested in an extensive comparative
review of imputation software, including Amelia II. Click to see a copy:
Horton NJ and Kleinman KP. <a
href="http://www.math.smith.edu/~nhorton/muchado.pdf">Much ado about
nothing: A comparison of missing data methods and software to fit
incomplete data regression models</a>. <i>The American Statistician</i>,
2007; 61(1):79-90.
Gary
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Hi,
Could anyone help me with the following error message?
****
There was an unexpected error in the execution of Amelia.
Double check all inputs for errors and take note of the error message:
Error in apply(data[, noms], 2, function(t) length(unique(na.omit(t)))) :
dim(X) must have a positive length
****
I try to impute several variables among which only one variable is nominal.
Kind regards,
Stijn
--
Stijn Ruiter
Department of Sociology
Radboud University Nijmegen
P.O. Box 9104
6500 HE Nijmegen
Netherlands
Phone: + 31 24 361 2272
Fax: + 31 24 361 2399
Visiting address:
Thomas van Aquinostraat 4.01.74
Nijmegen
website: http://oase.uci.ru.nl/~sruiter
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