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st: RE: generate random sample
From
"Philip Ryan" <[email protected]>
To
<[email protected]>
Subject
st: RE: generate random sample
Date
Mon, 16 Jan 2012 10:24:47 +1030
<<>>
The following will randomly sample 3 observations on variable x with
replacement from 10,000 observations with the distribution you specified.
Un-comment the -set seed- line (and provide a numeric seed) if you want
reproducibility between runs. see -help bsample-
clear
* set seed <seednum>
input x fw
1 2000
2 1000
3 3000
4 3000
5 1000
end
expand fw
bsample 3, weight(fw)
list x if fw==1
Phil
Philip Ryan
Professor and Director
Data Management & Analysis Centre [DMAC]
University of Adelaide
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
[email protected]
Sent: Monday, 16 January 2012 9:22 AM
To: [email protected]
Subject: st: generate random sample
Dear listers
I am using Stata/MP 11 Windows.
What is the good way to generate a sample from a population with
replacement?
Say, how to generate 3 independent random numbers from population
(1,2,3,4,5) with probability distribution (0.2, 0.1, 0.3, 0.3,0.1)?
Many thanks for the help.
Ning
--
Ning Li
Survey Methodologist
Melbourne Institute of Applied Economic and Social Research The
University of Melbourne
Tel: +61 3 9035 4949 Fax: +61 3 8344 2111
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