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Re: st: Data Manipulation Question


From   Robert A Yaffee <bob.yaffee@nyu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Data Manipulation Question
Date   Sat, 18 Nov 2006 08:34:56 -0500

Socrates,


If you don't have many parents, you could try:

 
gen t = _n
tsset t
gen tt=l.t
gen parentn = 1 if Parent==A
replace parentn = 2 if Parent==X
replace parentn = 3 if Parent==Z
replace parentn = l.parentn if l.t==tt & parentn ==.

.  If have a lot of families, this approach might not be practical.
  
Robert

Robert A. Yaffee, Ph.D.
Research Professor
Shirley M. Ehrenkranz
School of Social Work
New York University

home address:
Apt 19-W
2100 Linwood Ave.
Fort Lee, NJ
07024-3171
Phone: 201-242-3824
Fax: 201-242-3825
yaffee@nyu.edu

----- Original Message -----
From: Maarten buis <maartenbuis@yahoo.co.uk>
Date: Saturday, November 18, 2006 8:11 am
Subject: Re: st: Data Manipulation Question

> --- Socrates Mokkas <socrates.mokkas@economics.oxford.ac.uk> wrote:
> > I have a question related to data manipulation. My data sample is
> > like that:
> > 
> > Parent       Subsidiary
> > A            B
> >              C
> >              D
> >              F
> > X            J
> >              L
> > Z            T
> > 
> > What I want is to fill the gaps of the ParName.
> 
> Socrates:
> Something similar came up on the list recently: have a look at the
> thread started with:
> http://www.stata.com/statalist/archive/2004-07/msg00297.html
> HTH,
> Maarten
> 
> 
> 
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
> 
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room Z434
> 
> +31 20 5986715
> 
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
> 
> 
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