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Re: st: Huge dataset


From   Seb Buechte <sfbuechte@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Huge dataset
Date   Wed, 19 Oct 2005 11:35:50 +0200

Some additional comment from me:

I just created a test dataset containing 10,000,000 observations for 4
variable with double precision. That was no problem. Per variable
Stata needs 80,000,000 bytes. So this adds up to 320,000,000 bytes for
the 4 variable. Overhead etc needs another 40,000,000, so that Stata
needs 360,000,000 bytes of memory (reserved using -set mem-) to cope
with the data.

Kind regards
sebastian

On 10/19/05, Seb Buechte <sfbuechte@gmail.com> wrote:
> Ilaria,
>
> I would be confident that Stata can handle this. Using the tool
> Stattransfer 8.0 it is quiete easy to convert access data into stata 9
> data.
>
> Kind regards,
> sebastian
>
>
> On 10/19/05, Mosca, Ilaria <IMosca@ctg-zaio.nl> wrote:
> > Dear Statalisters,
> >
> > I have to deal with a huge dataset, which is composed of 4 variables
> > only but about 16 million observations.
> > The file is now stored as a Microsoft Access 2000 file. The question is:
> > how can I import the file into Stata? Moreover, is Stata 9.0 able to
> > deal with such file? In the "Getting started with Stata" manual I read
> > that observations are limited only by computer memory, but still my
> > doubt persists.
> >
> > Thank you,
> > Ilaria
> >
> > Met inachtneming van eventuele beperkende bepalingen in deze e-mail, mag u deze informatie gebruiken voor het doel waarvoor u die ontvangt. Aan deze gegevens kunnen geen rechten worden ontleend. CTG/ZAio aanvaardt geen aansprakelijkheid voor de juistheid en volledigheid van deze gegevens. Enige schade, ontstaan door de ontvangst of het gebruik van dit e-mailbericht of de informatie daarin, komt voor uw eigen verantwoordelijkheid.
> >
> >
> > *
> > *   For searches and help try:
> > *   http://www.stata.com/support/faqs/res/findit.html
> > *   http://www.stata.com/support/statalist/faq
> > *   http://www.ats.ucla.edu/stat/stata/
> >
>
>
> --
> - Seb F Buechte
> -
> - Stay tuned!
>


--
- Seb F Buechte
-
- Stay tuned!

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



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