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st: Large dataset . Slow Stata


From   "Tobias Pfaff" <tobiaspfaff@gmx.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Large dataset . Slow Stata
Date   Thu, 10 May 2007 09:17:20 +0200

Hello,
 
I am using Intercooled Stata 9.2 on a laptop with an AMD 1.79 GHz processor
and 512 MB ram. So far, Stata worked well with all datasets.
 
Now, we are analyzing a larger dataset with 70 variables and 180,000
observations. The dta-file has 224 MB. It takes alone two minutes to open
the file, not to mention the processing time of simple operations like
-drop- or -replace-. Is that normal? I have tried -compress-, which does not
have any major impact on the file size.
 
What is a PROFESSIONAL WAY to handle such a dataset?
 
1.) Upgrade my computer equipment?
2.) Split up my dataset (which would be a big nuisance for the analysis, I
think)?
3.) ANY OTHER STATA COMMAND OR TRICK?
 
Any help would be greatly appreciated.
 
Thanks,
Tobias Pfaff

University of Muenster
Germany

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