Statalist


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

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


From   Austin Nichols <austinnichols@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: random draw of single variable, not whole data
Date   Thu, 26 Feb 2009 14:19:52 -0500

Antoine Terracol <terracol@univ-paris1.fr>:
Except the poster wanted resampling with replacement, so you need to
generate a random obs to draw from (for each obs) from the integers 1
to N (not simply randomize the order of obs).  Look in bsample.ado for
a "fast method for resample of size _N"

On Thu, Feb 26, 2009 at 2:12 PM, Antoine Terracol
<terracol@univ-paris1.fr> wrote:
> In addition to -bsample- and -merge-, another solution is:
>
> clear
> set obs 10
> g x=rnormal()
> g rnd=uniform()
> egen rank=rank(rnd)
> g y=x[rank]
> li
> drop rank
>
>
> Antoine
>
> 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
>>
*
*   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