st: Csgof does not count var categories with zero observations

[Tara Johnson <tjohnsonrogers@gmail.com>]

I want to conduct a chi-square goodness of fit test. The problem is I
have a variable with multiple categories with no observations. When I
run csgof, Stata does not include the categories with no observations.
How do I get Stata to count the categories which could be there in
principle but which in practice don't exist?

Thanks,

Tara
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