Tubin wrote:
All interesting suggestions.  Let's see...

Running the code on a randomly-generated dataframe or a different "real"
dataset still has the problem.
A  whole new document with only a single line \Sexpr{trainsd} seems to work
just fine.
If, in the actual project document, I use:
<<test, results=xml,echo=F>>=
odfCat(trainsd)
@

to bring in that value, rather than the \Sexpr, it works - I get the
appropriate value with no error message.  Of course the formatting's all
wrong...


Time to come up with the minimal, self-contained, reproducible example, I think.


--
   O__  ---- Peter Dalgaard             Ă˜ster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark      Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalga...@biostat.ku.dk)              FAX: (+45) 35327907

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