Re: AW: st: AW: compare files, vars only

[Steven Samuels <sjhsamuels@earthlink.net>]

It's easy enough to fix Johanne's code to bypass the the size  
difference problem:

-Steve

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

 des using newauto, varlist

 loc second `r(varlist)'
 loc diff12 : list first - second
 loc diff21 : list second - first
 di in red "In 1st, not 2nd:  `diff12'"
 di in blue "In 2nd, not 1st:  `diff21'"

 *************

On Feb 19, 2009, at 11:31 AM, Martin Weiss wrote:

> <>
>
> You probably meant
>
>
> *************
> des using newauto, varlist
> *************
>
> right in the middle of your code. My knee-jerk proposal depends on  
> the first
> dataset being larger than the second one, BTW...
>
>
> HTH
> Martin
>
>
> -----Ursprüngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von  
> Johannes Geyer
> Gesendet: Donnerstag, 19. Februar 2009 17:25
> An: statalist@hsphsun2.harvard.edu
> Betreff: Re: st: AW: compare files, vars only
>
> 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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