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- From: frederik@pollux.acs.uci.edu (M. Donald Frederick)
- Newsgroups: sci.math.stat
- Subject: Re: bug in fortran RNG
- Message-ID: <2AFFFF33.13083@news.service.uci.edu>
- Date: 10 Nov 92 18:28:03 GMT
- Article-I.D.: news.2AFFFF33.13083
- References: <1992Nov5.205359.29733@cbfsb.cb.att.com> <1992Nov6.172324.23826@infodev.cam.ac.uk>
- Reply-To: frederik@pollux.acs.uci.edu (M. Donald Frederick)
- Organization: University of California, Irvine
- Lines: 35
- Nntp-Posting-Host: pollux.acs.uci.edu
-
- In article <1992Nov6.172324.23826@infodev.cam.ac.uk>, nmm1@cus.cam.ac.uk (Nick Maclaren) writes:
- |> In article <1992Nov5.205359.29733@cbfsb.cb.att.com>, rizzo@cbnewsf.cb.att.com (anthony.r.rizzo) writes:
- |> |> Some time ago, during a discussion of random number generators,
- |> |> at least one individual mentioned that the RNG in "Numerical Recipes,"
- |> |> perhaps the fortran version, had a bug in it. Does anyone recall
- |> |> what that bug was and how to correct it? Does anyone recall
- |> |> which of the various RNGs in "Numerical Recipes" has the bug?
- |> |> Thanks!
- |>
- |> I might have been the person, but I didn't say that there was a bug in any of
- |> the basic generators in Numerical Recipes. I said that most of them were
- |> ghastly, and fail several of the standard tests very badly. The only one
- |> that is any good is the DES-based one, and I suggest using more efficient
- |> code (such as Eric Young's). Alternatively, use a reliable traditional
- |> generator, such as Wichmann and Hill's.
- |>
- |>
- |> Nick Maclaren
- |> University of Cambridge Computer Laboratory,
- |> New Museums Site, Pembroke Street,
- |> Cambridge CB2 3QG, England.
- |> Email: nmm1@cus.cam.ac.uk
- |> Tel.: +44 223 334761
- |> Fax: +44 223 334679
-
- The NR authors have issued improved RNGs in the 2nd edition of their book.
- The same algorithms are discussed in their column in the Sep/Oct issue of
- "Computers in Physics".
-
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