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st: Proportion tests for non-binary variables


From   "Herve STOLOWY" <stolowy@hec.fr>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Proportion tests for non-binary variables
Date   Tue, 11 Apr 2006 07:36:46 +0200

Dear Statalisters:

I would like to test the equality of proportions of two variables which are not binary. Each variable can have four values (0, 1, 2 and 3). (To be more precise, the original variable is the same but are applied to two different populations, the total sample and a restricted sample. I created two different variables. With -tabulate-, I get easily the frequencies of both variables).

I can't use -prtest- and -ztest- because these two commands require, to my knowledge, binary variables. 

My comparison should work on unpaired data.

I searched in Stata on "proportions" but did not find any command for that purpose. I missed maybe something. Would you have an idea?

Best regards

Hervé Stolowy

***********************************************************
Professeur/Professor
Coordinateur du Département/Head of Department
HEC Paris
Département Comptabilité Contrôle de gestion / Dept of Accounting and Management Control
1, rue de la Liberation
78351 - Jouy-en-Josas
France
Tel: +33 1 39 67 94 42 - Fax: +33 1 39 67 70 86
stolowy@hec.fr
http://studies.hec.fr/web/stolowy

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