Hello
The manual says about identification variables: "idvars : a vector of
column numbers or column names that indicates identification variables.
These will be dropped from the analysis but copied into the imputed
datasets."
The "dropping" is not 100% clear to me in an important aspect, namely,
whether idvars are -considered- in the MI calculation process at all. So
is a) or b) the correct answer?
a) The idvars are -used- in the MI process to calculate imputations, but
are themselves not modified (imputed). They are copied to the output
dataset 1:1.
b) The idvars are only copied and -not- (even) considered in the MI
process to calculate imputations.
Thank you,
Marcus
--
Marcus M. Dapp | PhD student | ETH Zurich |
www.ib.ethz.ch/people/mdapp
Prof. Thomas Bernauer, International Relations |
www.ib.ethz.ch
On the shoulders of giants?
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