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Re: st: Scaling of variables


From   "Achmed Aldai" <Hauptseminar@gmx.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Scaling of variables
Date   Tue, 07 Jun 2011 10:26:27 +0200

Hi

I tried it but get the following error:

foreach v of var earnings lt dltt {gen 'v'_at = 'v'/at}
program error:  code follows on the same line as open brace
r(198);

earnings, lt, dltt are some of the variables.

Thanks again

-------- Original-Nachricht --------
> Datum: Tue, 7 Jun 2011 09:15:13 +0100
> Von: Nick Cox <njcoxstata@gmail.com>
> An: statalist@hsphsun2.harvard.edu
> Betreff: Re: st: Scaling of variables

> foreach v of var <put your varlist here> {
>      gen `v'_at = `v' / at
> }
> 
> A varlist is always a list of variable names, but possibly including
> wildcards such as foo? or bar*.
> 
> Nick
> 
> On Tue, Jun 7, 2011 at 9:05 AM, Achmed Aldai <Hauptseminar@gmx.de> wrote:
> > Hi Maarten
> >
> > sorry I have to ask again about the loops:
> > What would be my lname and do I use in or of list? I have like 30
> variables that have to be scaled by at.
> > If I use of what would be the name of my varlist or can I just set a
> random name for that?
> >
> > Concerning the macros, I would do it with ds [varlist], I guess the name
> from above and then say var/at?
> >
> > Thanks a lot for your help
> >
> > -------- Original-Nachricht --------
> >> Datum: Tue, 7 Jun 2011 09:21:34,
> >  +0200
> >> Von: Maarten Buis <maartenlbuis@gmail.com>
> >> An: statalist@hsphsun2.harvard.edu
> >> Betreff: Re: st: Scaling of variables
> >
> >> --- On Tue, Jun 7, 2011 at 9:10 AM, Achmed Aldai wrote:
> >> > I have to do an analysis with balance sheet data of several firms
> >> (gvkey) and want to scale some of the variables by total assets(at).
> E.g. total
> >> liablities, earnings, and so on. Is there a way that I can do this with
> one
> >> command and not do it for each variable since I have around 40 and that
> >> would take a lot of time. Still I dont have to scale all of them by
> total
> >> assets. The company (gvkey) and industry specifications for example
> should stay
> >> unchanged.
> >>
> >> You can loop over variables, see -help foreach-. The trick is than is
> >> to create a macro containing the appropriate variables, and feed that
> >> macro to -foreach-. For the creation of that macro I often use -ds-.
> >>
> 
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