Ziyang Wang wrote:
I'd like to ask a question about dummy variables, I have 11 dummy variables
which result from the interaction of two dummies, one with 3 categories and
the other with 4 categories. I like to know how to subdue those dummies in
the regression output? Something like absorb option in areg. Anyone knows?
Many thanks!
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If it's a linear model, then you can use -anova-. Otherwise, you can't
suppress the reporting of individual levels of dummy variables as far as I
know, but you can use -test- afterwards to get a single test statistic.
Joseph Coveney
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