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Re: st: How do I test that two subsample have different coefficient of variation?


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: How do I test that two subsample have different coefficient of variation?
Date   Thu, 10 Jul 2008 18:13:54 +0100 (BST)

--- Antonio Vezzani <antonio.vezzani@uniroma2.it> wrote:
> If, for example,  in auto.dta I want to test that price have
> different coefficient of variation for foreign and domestic auto,
> which is the right procedure?

Christopher F. Baum (206) Stata tip 38: Testing for groupwise
heteroskedasticity, The Stata Journal, 6(4): 590--592.
http://www.stata-journal.com/article.html?article=st0117

Hope this helps,
Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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