moPrep - Amelia

22 Apr 2012

Hello,

I'm getting the following error when I try to use moPrep with a proxy:

Error in `[.data.frame`(mf, , proxyname) : undefined columns selected

I've never used moPrep successfully with a proxy, nor could I find any example code
that uses a proxy, so there is a really good chance I'm just specifying something
wrong.  Here is an example using the africa data provided with the package.  moPrep works
well without a proxy, but with "civlib" specified as a proxy, specified as it
seems most natural to me, the command fails.

...
  data(africa)
 m.out <- moPrep(africa, trade ~ trade, error.proportion = 0.1)
 exists("m.out") [1] TRUE
...
  m.out.with.proxy <- moPrep(africa, trade ~ trade |
civlib, error.proportion = 0.1) Error in `[.data.frame`(mf, , proxyname) : undefined
columns selected
...
  exists("m.out.with.proxy") [1] FALSE

I'm using Amelia 1.6.1 on R 2.15.0, platform: x86_64-pc-mingw32/x64 (64-bit).

Any help or pointers is appreciated.

Thanks so much,
Joe Dieleman