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Re: st: Randomly picking observations based on a certain condition


From   Joerg Luedicke <joerg.luedicke@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Randomly picking observations based on a certain condition
Date   Wed, 13 Apr 2011 16:06:22 -0400

On Wed, Apr 13, 2011 at 3:17 PM, Nikhil Srivastava
<nikhil.del85@gmail.com> wrote:
> Hi,
>
> I have a dataset at the household level which contains the expenditure
> details of a sample of households. The dataset also records the number
> of adults within each household. I have divided this dataset into 5
> quintiles based on the level of expenditure. Now I need to randomly
> select a set of observations within each quintile so that the sum of
> the adults for those observations comes to 100. Could somebody please
> help me in writing a code for this part?
>
> I would really appreciate any help in this regard. Thanks

Do I understand that right, you want to sample households, and within
each quintile of household expenditure, the number of household
members among sampled households is supposed to add up to 100? Why
would you do that? Why not just taking a random sample of households
or a stratified sample with respect to household size, if that is a
concern. That way, you would at least have a clear picture of the
population you are targeting, whereas in the other case, this picture
becomes pretty blurry, no?

J.
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