[R] simple questions about R (fwd)
Prof Brian D Ripley
ripley at stats.ox.ac.uk
Mon Nov 9 08:51:43 CET 1998
On Fri, 6 Nov 1998, Mai Zhou wrote:
> OK, I am forwarding this to the r-help. In the original message
> I simply hit reply and I thought I send to ALL r-help list. (apparent not)
> also I recieved another piece of mail.....about the RNG in
> Splus 4.0 or later indicating it was modified and getting worse.
> I only have Splus 3.4 for HP. So I cannot try it.
Umm. There are no reported changes and I have observed no differences
in the random numbers in later versions of S-PLUS (4.0, 4.5, 5.0).
Without the code for the bootstrap example quoted we cannot
investigate, but my guess is that the problem is elsewhere in R.
You can NOT conclude that the problem is in R's PRNG, only that it
is in R. So could you please post the full details to R-devel.
> This makes the idea of using the
> pre-generated RN on CDROM more appealing..
It is (very) slow, needs a local CDROM drive on the machine, ...
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 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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