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Re: st: U.S. Census Data


From   Stas Kolenikov <skolenik@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: U.S. Census Data
Date   Thu, 6 May 2010 13:16:26 -0500

On Thu, May 6, 2010 at 10:03 AM, Martin Weiss <martin.weiss1@gmx.de> wrote:
> But careful with such examples: They do not say much about Nate`s problem as
> you are creating the default data type after -gen- which is "float". It
> occupies 4 bytes, as in http://www.stata.com/support/faqs/data/howbig.html.
> Strings in particular could change the picture.

As you data set is so thin, you also need to worry about the overheads
of statistical and data management procedures. If a particular -ml-
routine wants to create 10 temp variables, and you request -robust-
option that needs scores for every equation, you may see your memory
requirements double or triple. If you need to -reshape- your data set
this way or that way, it may also be problematic, although I don't
know specifically what the memory requirements are.

-- 
Stas Kolenikov, also found at http://stas.kolenikov.name
Small print: I use this email account for mailing lists only.
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