From p.dalgaard@kubism.ku.dk  Wed Apr 30 10:40:54 1997
From: p.dalgaard@kubism.ku.dk (Peter Dalgaard BSA)
Date: 30 Apr 1997 11:40:54 +0200
Subject: R-alpha: Re: R-beta: Re: S Compatibility
In-Reply-To: Ross Ihaka's message of Wed, 30 Apr 1997 14:27:07 +1200 (NZST)
References: <199704300227.OAA06297@stat1.stat.auckland.ac.nz>
Message-ID: <x2k9lk4zmh.fsf@bush.kubism.ku.dk>

Ross Ihaka <ihaka@stat.auckland.ac.nz> writes:

[on out-of-memory data]
> 
> Its something we definitely need (almost as much as REAL libraries).
> If only there were another 24 hours in each day ...

No problem. You just need someone as smart as you are to chip in with
the development. Or four people half as smart ;^)

There might also be some more "brutal" approaches, such as having the
vector heap as a memory-mapped file, leaving the cacheing and similar
work to the operating system. OS's are already quite good at handling
files with holes in them, so it's not like allocating a huge file just
for a handful af variables. Some special routines for defragmentation
might be necessary, though. Not that I really know what I'm talking
about...

At any rate, it would probably be a good thing to start thinking in
terms of modularity, database backends and such.

I've moved the thread to r-devel, it seemed to be getting too
technical for r-help.

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907
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R-alpha: Re: R-beta: Re: S Compatibility
Peter Dalgaard BSA