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Re: st: RE: RE: Stata 8 Datasets for Stata Press Books

From (Shannon Driver)
Subject   Re: st: RE: RE: Stata 8 Datasets for Stata Press Books
Date   Tue, 04 Feb 2003 11:30:24 -0600

Bryan Sayer ( wrote:

> Thanks.
> It's interesting that the compressed file is actually a bit larger than the
> sum of the individual files, at least for the survey datasets.

Tar files have been a standard tape archive format for many years.  As such,
they are not compressed in any way, by default.  A tar file of this nature is 
usually larger than the sum of sizes of all included files because it contains 
organizational information about each file.  Had these files been compressed,
they would bear a name such as allSVYfiles.tgz or allSVYfiles.tar.Z.

The tar files themselves were not compressed because some applications on other 
platforms have problems uncompressing them.

--Shannon Driver

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