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Re: st: Scaling of variables


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Scaling of variables
Date   Tue, 7 Jun 2011 09:35:25 +0100

As the message says. code follows on the same line as an open brace,
meaning the "{".
So, don't do that. Enter a new line after the {. See also examples in
the help for -foreach-.

Nick

On Tue, Jun 7, 2011 at 9:26 AM, Achmed Aldai <Hauptseminar@gmx.de> wrote:
> 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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