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st: RE: RE: Saving data in compressed format? - wishlist...


From   Lee Sieswerda <Lee.Sieswerda@tbdhu.com>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: Saving data in compressed format? - wishlist...
Date   Wed, 12 Feb 2003 15:14:37 -0500

Glenn wrote:

"Thank you to the Stata staff for listening to our never-ending lists of
> ways to improve an already great product."  
> 
I would guess that StataCorp folks are perceptive enough to see the benefits
of Statalist as a giant global focus group talking about their product
24/7/365.

Lee


> -----Original Message-----
> From: Cruces,GA (pgr) [mailto:G.A.Cruces@lse.ac.uk] 
> Sent: Wednesday, February 12, 2003 1:38 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Saving data in compressed format? - wishlist...
> 
> Dear All,
> 
> As you might have noticed, "zipping" a .dta file often results in
> compressed files that are less than one tenth of the original file size.
> I couldn't find any documentation on a compressed stata file format - if
> there is, please let me know and ignore the rest of this message. I
> solve the problem of large files (in Windows) by compressing the folder,
> so it uses less disk space, but it is still a problem when you want to
> transfer or transport files.
> I don't really know what it would take, but my guess is that it wouldn't
> be too hard to store the files in some sort of compressed format, and
> having Stata decompressing them on the fly when opening. I could even
> think of having very large datasets (larger than physical memory)
> compressed in memory... but that would probably slow things too much. 
> Since I don't think this will be implemented soon, could someone share
> experiences on invoking Windows apps from within stata? I'm thinking
> about doing some sort of "usezip" program that would open .zip files...
> Thank you!
> All the best,
> 
> g.
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