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Re: st: Two factor anova post test


From   "Airey, David C" <david.airey@vanderbilt.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Two factor anova post test
Date   Tue, 19 Jul 2011 11:14:01 -0500

.

One way in Stata is to use margins:

webuse systolic, clear
anova systolic drug disease drug#disease
margins drug, asbalanced post
test (1.drug == 2.drug) ///
	(1.drug == 3.drug) ///
	(1.drug == 4.drug) ///
	(2.drug == 3.drug) ///
	(2.drug == 4.drug) ///
	(3.drug == 4.drug), mtest(sidak)

-Dave


> Thank you Angel. The term that is significant is race, with three levels,
> therefore I am not completely sure which means are different, and I do not
> understand how to use -test-, or even if that is the correct way  to compare
> them.
> 
> Thank you,
> Ricardo.

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