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Re: your PSPP presentation

From: Ben Pfaff
Subject: Re: your PSPP presentation
Date: Wed, 01 Nov 2006 21:09:03 -0800
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)


> what i'm trying to ask is that, how many variables and cases can PSPP
> afford? or what is the maximum number of variables and cases that i can
> enter in PSPP? comparing with SPSS if possible.

For most purposes, cases should be limited only by the amount of
disk space you have available, with a hard limit of about 2
billion cases.  Increased RAM will speed up operations, if you
allow PSPP to use that RAM with SET WORKSPACE.

Variables are limited by your machine's memory, again with a hard
limit of about 2 billion variables.  Each variable should require
less than 1 kB of RAM, although large numbers of value labels
increase memory requirements.

Large numbers of cases and variables have not been thoroughly

I should add these figures to the documentation.
Ben Pfaff 
email: address@hidden

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