Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: confirm a variable is an identifiant


From   Philipp Rehm <philipp.rehm@gmx.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: confirm a variable is an identifiant
Date   Wed, 24 Jun 2009 19:33:43 +0200

.
In addition, -isid- comes to mind.

HTH,
Philipp

Stas Kolenikov wrote:
bysort ID : assert _N == 1

I am sure this has been covered in Stata Journal Nick Cox' "Speaking
Stata" columns and tips.

On Wed, Jun 24, 2009 at 11:50 AM, Jean-Benoit
Hardouin<jean-benoit.hardouin@univ-nantes.fr> wrote:
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

--

Jean-Benoit Hardouin, PhD
Maitre de Conférences - Assistant Professor
EA 4572 "Biostatistics, Clinical Research and Subjective Measures in Health
Sciences"
http://www.sante.univ-nantes.fr/biostat/

Departement of Biomathematics and Biostatistics
Faculty of Pharmaceutical Sciences
University of Nantes
1, rue Gaston Veil - BP 53508 44035 Nantes Cedex 1 - FRANCE Email :
jean-benoit.hardouin@univ-nantes.fr
Personal website : http://www.anaqol.org
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/




*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index