This looks suspiciously like a syntax problem.
I would get my text editor to search for 'c14ordered'
in the code. You might have missed some punctuation.
-Peter Ehlers
A good thought. I checked my own code (the stuff coding the data and
using the mi package) and, for good measure, the code of the mi.polr
function in the mi package, but the string "c14ordered" never appears.
And what does
>traceback()
tell you?
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