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Re: st: RE: count in matched family-individuals file


From   Joana Estata <estata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: count in matched family-individuals file
Date   Wed, 1 Jul 2009 17:45:00 +0100

Many thanks Nick I had already done it from www.stata.com your answer
May 2001 updated April 2005, Martin sent me the link.
The detail of age <. is also very important.

On 7/1/09, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> This sounds like
>
> egen nadults = total(age >= 18 & age < .), by(IDhousehold)
>
> -egen- as I recall is not even mentioned in [U], but there's a help
> page.
>
> The Data Management FAQs on www.stata.com are fairly dense with nearby
> examples.
>
> Nick
> n.j.cox@durham.ac.uk
>
> Joana Estata
>
> I matched 2 files, one of households and other of individuals of each
> household.
> Now I have a file where the characteristics of each household are
> associated with each individuals.
> I want:
> (a) to create a variable which count how many adults (18+) exist in
> each household . Observations are individuals, so it means how many
> times the same IDhousehold appears associated with an individual with
> 18 years old or upper.
> (b) add the variable obtained in (a) to the household characteristics
> (number of adults per household will be add to other characteristics
> as size or income).
> I have User Guide STATA Release 9, junt send me to a page.
>
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