Re: st: genealogy: how to calculate sibship size

[Ronnie Babigumira <rb.glists@gmail.com>]

You have not given so much information so Im not sure I understand your problem. That said, there is nice FAQ on family 
data see

http://www.stata.com/support/faqs/stat/members.html

It might helpful


Ronnie

BAIJER Jan 212040 wrote:

> Hello all,
>
> I'm trying to have Stata calculate the number of sibs for each of the
> families in a list that is composed as follows :
>
> donor_id
> father_id
> mother_id
>
> > From this, I can calculate a unique identifier for the parent couple, by
> concatenation of father_id and mother_id.
>
> But, I have no idea how to proceed for this one ...
>
> --
> Jan Bayer, Ph.D.
> CEA-FAR-DSV-DRR
> Route du Panorama BP 6
> 92265 Fontenay-aux-Roses Cedex
>
> France
> TEL: +33 (0)1 46 54 97 51
> FAX: +33 (0)1 46 54 91 80
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