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Re: st: creat random non-repeating


From   Vincent Davis <vincent@aspentechpro.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: creat random non-repeating
Date   Sat, 8 Mar 2008 14:34:30 -0700

Thanks, like it, It's obvious now.
Vincent

On Mar 8, 2008, at 1:58 PM, Maarten buis wrote:

What about this:

*-------------- begin example ------------------
drop _all
set obs 20
gen obs = _n
gen unif = uniform()
sort unif
keep in 1/10
drop unif
list
*-------------- end example --------------------
(For more on how to use examples I sent to the Statalist, see
http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )

Hope this helps,
Maarten

--- Vincent Davis <vincent@aspentechpro.com> wrote:

I am trying to make a variable with random non-repeating integer obs

in the range a to b.
 Any suggestions
Thanks
Vincent
Like this, where var1 is random non-repeating over the range 1-20
OBS	Var1
1		4
2		7
3		2
4		20
5		12
6		15
7		18
8		17
9		11
10		1

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-----------------------------------------
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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