Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: Re: Assert question.


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: Assert question.
Date   Fri, 18 Mar 2005 17:28:41 -0500

You are only asking Stata to list observations where hid equals the prior hid, so you would only see one observation (the second) from each duplicate pair.

Michael Blasnik
michael.blasnik@verizon.net

----- Original Message ----- From: <adiallo5@worldbank.org>
To: <statalist@hsphsun2.harvard.edu>
Sent: Friday, March 18, 2005 4:17 PM
Subject: st: Assert question.



Hi,
I have a question.
I have identifiers ranking from 1 to 9882 on 4940 observations.
I have issued a command:

assert hid[_n-1]~=hid[_n]

and got a error message:
(6 contradictions in 4940 observations).

when I list:
list if hid[_n-1]==hid[_n]

I have:

                  hid
.3902       3902
.4185       4186
.4231       4231
.4838       4837
.4884       4882
.4931       4929

I do not have a perfect merge so I guess the problem comes from
there.

But I wonder why stata get confused. The values of hid are not identical.

Or am I too tired...

Thanks in advanced.

Amadou Bassirou DIALLO
Ph.D Candidate
Poverty Specialist, PREM, The World Bank.
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   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