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From: Tyler Smith <tyler.smith@eku.edu>
To: help-gnu-emacs@gnu.org
Subject: Re: random predicate function
Date: Mon, 13 Dec 2010 11:08:29 -0500	[thread overview]
Message-ID: <87ei9lveo2.fsf@guruji.demimonde> (raw)
In-Reply-To: ie5ej4$u73$1@dough.gmane.org

Gary <help-gnu-emacs@garydjones.name> writes:

> Tyler Smith wrote:
>
>> 		 (lambda (tmp1 tmp2) (if (eq (mod (random) 2) 0)
>> 					 t
>> 				       nil))))))
>
> I'm by no means an expert, but you should perhaps first once call
>   (random t)
> Have a look at
> http://www.gnu.org/software/emacs/elisp/html_node/Random-Numbers.html

Thanks, Gary. I found that after I sent the first message. I've added in
a call to (random t). I still get some 'non-random' looking sorts. It's
hard to be sure, I'll have to run some sort of systematic check to see
if the results are consistent over large numbers of calls.

Cheers,

Tyler




  reply	other threads:[~2010-12-13 16:08 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-13 14:43 random predicate function Tyler Smith
2010-12-13 15:37 ` Gary
2010-12-13 16:08   ` Tyler Smith [this message]
2010-12-13 16:16     ` Erik Iverson
2010-12-13 16:50       ` Tyler Smith
     [not found] <mailman.0.1292251427.11097.help-gnu-emacs@gnu.org>
2010-12-13 15:26 ` Pascal J. Bourguignon
2010-12-13 17:16   ` Ted Zlatanov
2010-12-13 17:48     ` Pascal J. Bourguignon
2010-12-15 14:51       ` Ted Zlatanov
2010-12-15 15:20         ` Pascal J. Bourguignon
2010-12-15 16:44           ` Ted Zlatanov
2010-12-15 17:28             ` Pascal J. Bourguignon
2010-12-15 18:39               ` Ted Zlatanov
2010-12-15 18:04             ` Drew Adams
2010-12-13 18:17   ` Tyler Smith
     [not found]   ` <mailman.2.1292264248.1009.help-gnu-emacs@gnu.org>
2010-12-13 18:38     ` Pascal J. Bourguignon
2010-12-13 19:05       ` Tyler Smith

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