In private emails with C�sar J�nior, a Brazilian statalister, it was found
that the problem with -genhwi- previously mentioned is caused by a lack of
the command -sortpreserve-, which, if added to -genwhi-, seems to solve
fully the absence of computations of exact values for some observations.
I would like to thank Nick Cox for his help and interest in examing the
problem as well as to C�sar J�nior for his valuable suggestions.
All the best,
Tiago
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