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Re: st: creating age variable for all ids


From   "Eva Poen" <eva.poen@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: creating age variable for all ids
Date   Thu, 29 May 2008 15:47:58 +0100

Here is one way to do it. Note that I start from scratch to create the
ID variable. You can start with -expand-.

*********************
clear
set obs 5
gen id = _n
expand 5
sort id
list
bysort id: gen age = 55+(_n*5)
list
**********************

Eva

2008/5/29 MAY BAYDOUN <mbaydoun2002@yahoo.com>:
> Hello,
>
> I am trying to create a dataset in which I already
> have the id numbers but I would like to replicate them
> and add another variable age that has exactly the same
> values for all ids. So, the original file is:
>
> id
> 1
> 2
> 3
> 4
> 5
>
> The file I want to create is:
>
> id   age
> 1    60
> 1    65
> 1    70
> 1    75
> 1    80
> 2    60
> 2    65
> 2    70
> 2    75
> 2    80
> ..
>
> I was wondering if you can help find the easiest way
> to do that. Thanks a lot!
>
> May
>
>
> May Baydoun, PhD in Epidemiology (UNC-Chapel Hill)  Staff Scientist,  National Institute on Aging, NIH/IRP,  Biomedical Research Center,  Baltimore, MD
>
>
>
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