Another way is to use the command cd.
At the top of a do-file:
cd "../../../data/retr1/dta"
Elsewhere, use the file without specifying the path.
use request1,clear
Salah
> -----Original Message-----
> From: [email protected] [mailto:owner-
> [email protected]] On Behalf Of Roger Newson
> Sent: Wednesday, January 28, 2004 3:42 PM
> To: [email protected]
> Subject: st: Re: SAS libname equivalent
>
> At 13:54 28/01/04 -0600, Jason A. Thompson wrote:
> >What is the correct way in Stata to establish pointers to paths in
> Windows
> >XP, something along the lines of the LIBNAME and FILENAME statements
in
> >SAS? Can this be done using Windows environment variables? Can it be
done
> >without? Can it be done at all?! I've found the ability to do this in
> >other environments critical to maintaining shared code.
>
> I personally store the path in a macro using a command near the top of
a
> do-file. For instance, I might have a line near the top of the do-file
> like
>
> global retr1 "../../../data/retr1/dta"
>
> which stores the path "../../../data/retr1/dta" in the global macro
named
> retr1. If I want to refer to any Stata data file in that folder
further
> down in the do-file, then I use a command like
>
> use $retr1/request1,clear
>
> which reads data from the file
>
> ../../../data/retr1/dta/request1.dta
>
> into the memory. If you later rearrange your hierarchy of folders,
then
> you
> need only alter the line near the top of the do-file with the -global-
> statement, and do not have to change any of the references further
down.
> See -help macro- for more information about Stata macros.
>
> I hope this helps.
>
> Roger
>
>
> --
> Roger Newson
> Lecturer in Medical Statistics
> Department of Public Health Sciences
> King's College London
> 5th Floor, Capital House
> 42 Weston Street
> London SE1 3QD
> United Kingdom
>
> Tel: 020 7848 6648 International +44 20 7848 6648
> Fax: 020 7848 6620 International +44 20 7848 6620
> or 020 7848 6605 International +44 20 7848 6605
> Email: [email protected]
> Website: http://www.kcl-phs.org.uk/rogernewson
>
> Opinions expressed are those of the author, not the institution.
>
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