From: Sven LUTHER <luther@dpt-info.u-strasbg.fr>
To: John Max Skaller <skaller@ozemail.com.au>
Cc: Mattias Waldau <mattias.waldau@abc.se>, caml-list@inria.fr
Subject: Re: sorting of list of vectors (array with one dimension)
Date: Thu, 30 Nov 2000 12:47:54 +0100 [thread overview]
Message-ID: <20001130124754.A14873@lambda.u-strasbg.fr> (raw)
In-Reply-To: <3A2603CF.698A368D@ozemail.com.au>; from skaller@ozemail.com.au on Thu, Nov 30, 2000 at 06:37:51PM +1100
On Thu, Nov 30, 2000 at 06:37:51PM +1100, John Max Skaller wrote:
> Mattias Waldau wrote:
> >
> > I have a list of vectors, I would like to sort according to the first
> > vector, and move the corresponding data in the other vectors.
> >
> > Is there a function for this (for example, a sort function, where I add a
> > function that is called each time data is swapped) or do I have to write a
> > quicksort in ocaml.
why not use a associative map or something such instead of a list of vectors ?
you would use the content of the first vector as key, and the other vectors as
data. This way you get a datatype which is ordered as stored, and which give
you faster random access & modify time than a list. It still is a fully
functional datatype.
Friendly,
Sven Luther
next prev parent reply other threads:[~2000-12-03 22:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-21 8:23 Jocelyn Serot
2000-11-29 17:36 ` sorting of list of vectors (array with one dimension) Mattias Waldau
2000-11-30 7:37 ` John Max Skaller
2000-11-30 11:47 ` Sven LUTHER [this message]
2000-11-30 12:21 ` John Max Skaller
2000-12-01 18:44 ` Mattias Waldau
2000-12-02 16:00 ` John Max Skaller
2000-11-30 11:33 ` Judicael Courant
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