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Re: st: Manipulations within a panel data set.


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Manipulations within a panel data set.
Date   Sat, 27 Jul 2013 09:29:41 +0100

Yes. In principle

gen relative_income = income / income[wheretolook]

is sufficient here, where -wheretolook- is a variable -- or more
generally a placeholder for an expression -- ndicating the subscript
of the observation corresponding to each observation you want divided.


Nick
njcoxstata@gmail.com


On 27 July 2013 03:48, George Shoukry <gshoukry@gmail.com> wrote:
> Hello,
>
> Say I have a panel data set with n individuals and income is one of
> the regressors. I have two indices: i,j in {1,...,n} and I would like
> to set the income of person i to be the income of person i divided by
> the income of person j, and leave everything else unchanged. Is there
> a simple way to do that?
>
> Also, I will have to do this for all individuals, but they will all be
> divided by different j's. If I have a list of the j's for i in
> {1,...,n}, is there a quick way to do what I described above in Stata
> without a for loop?
>
> Thanks!
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