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Re: st: RE: Modify large data base without opening it


From   "Michael I. Lichter" <mlichter@buffalo.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Modify large data base without opening it
Date   Wed, 24 Sep 2008 16:45:44 -0400

Martin is of course right and I apologize for misreading the question. I was thinking about my own problems with reading large datasets not yet in Stata format.

-ml

Martin Weiss wrote:

No need to drop anything, just load whatever you need with -use with
options-. See - h use-


HTH
Martin


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of José Luis Chávez
Calva
Sent: Wednesday, September 24, 2008 10:18 PM
To: statalist@hsphsun2.harvard.edu
Subject: st: Modify large data base without opening it

I'm working with a very large data base (1000m, 2000 vars) and my PC
is taking too long to open it. I would like to know if there is a way
or a specific command to drop some variables without actually opening
the data base.

Thanks in advance,

José Luis Chávez Calva

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Michael I. Lichter, Ph.D.
Research Assistant Professor & NRSA Fellow
UB Department of Family Medicine / Primary Care Research Institute
UB Clinical Center, 462 Grider Street, Buffalo, NY 14215
Office: CC 125 / Phone: 716-898-4751 / E-Mail: mlichter@buffalo.edu

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