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Re: st: Taboods

From (Roberto G. Gutierrez, StataCorp.)
Subject   Re: st: Taboods
Date   Tue, 18 Jun 2002 11:12:29 -0500

In the continuing thread on -tabodds-, I had suggested that the problem may
have been with a variable labeling.  Jean Bouyer <> adds:

> Thanks for your answer. But, I had already check for this, and I don't think
> it is the solution because the variable agec6 has no value label (see
> below).

> [etc.]

My Stata colleague, Weihua Guan, pointed this out to me:

> The -base(#)- option does not specify the value of a category, i.e.,
> agec6==#, but specifies the #th category.  In Jean's example, -base(2)-
> actually tells -tabodds- that the second category, for which agec6==1, will
> be set as the base.

> The ado code generates a temporary group variable using -egen-:

> . egen `g' = group(agec6)

> and then compare the number specified by -base()- to the value of `g'. 

> The help file of -tabodds- is not clear about this point, and we may want to
> modify it in a later update.

Weihua and I agree that this "feature" of -tabodds- needs to be better

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