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st: confirm a variable is an identifiant

From   Jean-Benoit Hardouin <>
Subject   st: confirm a variable is an identifiant
Date   Wed, 24 Jun 2009 18:50:40 +0200

Dear all,
I search to verify if a variable is an identifiant that is to say that each row of a file have a different value on this variable than all the others rows. I want to use the -inspect- to compare the number of "unique value" (if the number of unique value is equal to the number of individual then the variable is an identifiant) but -inspect- don't count the number of different values if this number is superior to 100.
Have someone an idea ?
Best regards,


Jean-Benoit Hardouin, PhD
Maitre de Conférences - Assistant Professor
EA 4572 "Biostatistics, Clinical Research and Subjective Measures in Health Sciences"

Departement of Biomathematics and Biostatistics
Faculty of Pharmaceutical Sciences
University of Nantes
1, rue Gaston Veil - BP 53508 44035 Nantes Cedex 1 - FRANCE Email : Personal website :
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