[R] mice - undefined columns selected

[Jeremy Miles]

I've got a problem with the mice package that I don't understand.

Here's the code:
library(mice)
d <- read.csv("https://dl.dropboxusercontent.com/u/24381951/employment.csv",
 as.is=TRUE, row.names=1)d.imp <- mice(data=d, m=1)

Result is:
Error in `[.data.frame`(data, , jj) : undefined columns selected

I hope I'm doing something foolish,

thanks,

Jeremy

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