Message-ID: <Pine.LNX.4.61.0512131556140.3077@gannet.stats>
Date: 2005-12-13T15:59:04Z
From: Brian Ripley
Subject: Question
In-Reply-To: <XFMail.051213141702.Ted.Harding@nessie.mcc.ac.uk>
On Tue, 13 Dec 2005 Ted.Harding at nessie.mcc.ac.uk wrote:
> On 13-Dec-05 Uwe Ligges wrote:
>> Davia Cox wrote:
>> [...]
>>> My question is in order to run a true random sample,
>>
>> We have to disappoint you: Your computer cannot generate
>> "true random samples".
>
> At least on Linux (and probably most Unix) systems,
> /dev/random must be a pretty good approximation (provided
> you don't over-work it ... ).
See
library(accuracy)
?trueRandom
(for some definition of 'true').
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595