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Re: st: AW: compare files, vars only


From   Johannes Geyer <JGeyer@diw.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: AW: compare files, vars only
Date   Thu, 19 Feb 2009 17:24:51 +0100

what about:

 *************
 clear*
 sysuse auto, clear
 drop  gear_ratio displacement
 save newauto, replace
 sysuse auto, clear
 qui ds
 loc first `r(varlist)'

 des using auto, varlist

 loc second `r(varlist)'
 loc diff: list first - second
 di in red "Differences: `diff'"
 *************

-describe- does not need to load the dataset which may be of interest here


Johannes

owner-statalist@hsphsun2.harvard.edu schrieb am 19/02/2009 16:53:44:

> <> 
> 
> 
> 
> *************
> clear*
> sysuse auto, clear
> drop  gear_ratio displacement
> save newauto, replace
> sysuse auto, clear
> qui ds
> loc first `r(varlist)'
> u newauto, clear
> qui ds
> loc second `r(varlist)'
> loc diff: list first - second
> di in red "Differences: `diff'"
> *************
> 
> I am sure I have violated several rules on the possible lengths of
> components in here (think 244...)
> 
> 
> HTH
> Martin
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von David 
Kantor
> Gesendet: Donnerstag, 19. Februar 2009 16:41
> An: Statalist
> Betreff: st: compare files, vars only
> 
> Hi.
> Does anyone know of a program to compare the sets of variables in two 
> data files? What I have in mind is something akin to -cf-, but...
>   it would not compare values -- only the names of variables;
>   it would not care whether the two data files had the same number of 
> observations.
> 
> I was planning to write such a program, but I wanted to be sure that 
> it hadn't already been done.
> Thanks
> --David
> 
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