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


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   AW: AW: st: AW: compare files, vars only
Date   Thu, 19 Feb 2009 17:52:31 +0100

<> 


I am confident Johannes will agree to coauthorship :-) Anyway, thanks for
the fix...


HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Steven Samuels
Gesendet: Donnerstag, 19. Februar 2009 17:50
An: statalist@hsphsun2.harvard.edu
Betreff: Re: AW: st: AW: compare files, vars only


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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