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Re: st: random draw of single variable, not whole data


From   Jeph Herrin <junk@spandrel.net>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: random draw of single variable, not whole data
Date   Thu, 26 Feb 2009 14:19:54 -0500


It's not clear if you want sampling with or without replacement.

With replacement:

  gen y = x[round(_N*uniform(),1)+1]

without replacement:

  egen index=rank(uniform())
  gen y = x[index]

hth,
Jeph


Florian Wakolbinger wrote:
Dear all,

is it possible to randomly draw numbers out of a variable x and write it into another variable y

i.e. if

x
1
2
3
4
5

then y could be, for instance

y
3
5
3
2
4

all numbers in y are randomly drawn from x. how is it possible to construct such a variable y in stata?

thanks, and kind regards
florian

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