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Re: st: -xi- in versions 11, 12

From   Richard Williams <>
Subject   Re: st: -xi- in versions 11, 12
Date   Tue, 01 Nov 2011 12:20:02 -0500

At 11:13 AM 11/1/2011, Clyde B Schechter wrote:
Nick Cox wrote:

"Also, -xi:- is not needed in Stata 11, given the introduction of factor variables."

Would that it were completely true. Apart from existing .do and .ado files that may call on it, there are still some dusty corners of current Stata that do not accept factor variables. -oneway- and -loneway- are examples. Also, even regression commands that work nicely with factor variables on their own, fail when used with factor variables under -nestreg-.

Now, admittedly, oneway and loneway are dispensible: other commands that work nicely with factor variables subsume their functionality. But -nestreg- has no factor variable accepting equivalent command that I'm aware of.

Good point. There are also user-written commands that work with -xi- but not with factor variables.

Richard Williams, Notre Dame Dept of Sociology
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