Hello all,
We just patched up a bug in the handling of "ordinals" in Amelia. The
"ords" argument forces imputations into the ordinal categories, but
this transformation had a bug in it, resulting in some incorrect
imputations. The problem was limited only to those variables marked as
"ords" so the other imputed variables would be fine. The version of
Amelia (1.1-29) will be up on CRAN shortly, but until then, you can
use the following command to update your version of Amelia:
install.packages("Amelia", repos="http://gking.harvard.edu")
The fix should resolve any issues with problematic ordinal imputations
such as unimputed variables and/or strange imputations. Note that this
transformation is usually unnecessary for most analyses and is useful
when the variable will be a dependent variable in the analysis stage.
See the Amelia manual for more information.
Please let us know if you have any problems.
regards,
the amelia team.
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