search for: diehard

Hello, I am having trouble installing the package from CRAN. As the package compiles I get: * installing *source* package ‘RDieHarder’ ... ** package ‘RDieHarder’ successfully unpacked and MD5 sums checked checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for...

Classification: UNCLASSIFIED Caveats: NONE Hello, R users, Has anybody written a function for random test based on the length of longest run of same events. I really appreciate your help. Kyong Park Classification: UNCLASSIFIED Caveats: NONE [[alternative HTML version deleted]]

...-Original Message----- From: bogdan romocea [mailto:br44114@gmail.com] Sent: Thursday, December 27, 2007 12:08 PM To: kyong.ho.park@us.army.mil Cc: r-help Subject: RE: [R] A function for random test based on longest run (UNCLASSIFIED) > require(tseries) > ?runs.test Also, take a look at dieharder, it implements a large number of randomness tests: http://www.phy.duke.edu/~rgb/General/dieharder.php > -----Original Message----- > From: r-help-bounces@r-project.org > [mailto:r-help-bounces@r-project.org] On Behalf Of Park, Kyong H Mr > ECBC > Sent: Thursday, December 27, 20...

Hi. I have a VM with CentOs6.2 on KVM. I mount an image of the VM when it's not working with guestmount: root at diehard:~# guestmount -a named-centos.img -i tmp vi /etc/shadow insert comment line into the file (esc yy p 0 i # esc :wq!), save changes, unmount the image, turn on the VM, and I cannot login. I cannot login even if I recover the shadow file. root at diehard:~# guestmount --version guestmount 1.16.15...

Hi, subject more or less says it all. I freely admit to not having bothered to find some of the online papers about method of testing the quality of random number generators -- but in an idle moment I wondered what to expect from something like the following: randa<-runif(1000) randb<-runif(1000) t.test(randa,randb)$p.value var.test(randa,randb)$p.value [repeat ad nauseum] Is the

RDieHarder fails its regression tests on x86_64 (aka "amd64") at CRAN (using Debian), and I see the same on Ubuntu 8.10 in 64 bit. No issues on 32bit. One odd thing is that the program behaves well if run via R --no-save < tests/RDieHarder.R but NOT when started using R --slave &l...

...llough <BMCCULLO at fcc.gov> To: mai at ms.uky.edu Subject: S-Plus RNG Mime-Version: 1.0 Content-Type: text/plain Content-Disposition: inline Mai, Someone forwarded to me your e-mail about RNGs. I do not know about S-Plus 4.5, but S-Plus 4.0 RNG was bad. It failed many of Marsaglia's DIEHARD tests. S-Plus 4.0 documentation indicates that not the Super-Duper, but a "modified" Super-Duper was used. Modifying an RNG is not a good idea. It tends to make the RNG worse. The original Super-Duper passes all the DIEHARD tests. Regards, Bruce -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-....

Hi, Is there a package that contains testing algorithms (e.g. runs test, serial test, autocorrelation test...) for random number generators ? Cheers, Kevin ------------------------------------------------------------------------------ Ko-Kang Kevin Wang Postgraduate PGDipSci Student Department of Statistics University of Auckland New Zealand Homepage: http://www.stat.auckland.ac.nz/~kwan022

I got hold of the 0.0.7 RDieHarder binary package as zip for Windows from CRANextras but don't know how to invoke its main method dieharder() in R with "file_input" as RNG argument - how to specify path to that input file ? the 0.0.7 as opposed to 0.1.0 doesn't seem to have ''inputfile'' arg for...

Hi All. I have R code whose functionality is being replicated within a C+ program. The outputs are to be compared to validate the conversion somewhat - however (as is always the case) I have stuffed my code with random number calls. Random uniform numbers in C+ are being produced using the (Boost) mersenne-twister generators (mt11213b & mt19937) - which is the default type of generator

Dear all, Is there a test in R for the randomness of a sequence of observations (e.g. to test the random number generator)? Specifically I am looking for autocorrelations which are not necessarily linear in nature, which the acf function does not seem to be flexible enough to detect as it tests for linear autocorrelation. Thanks in advance, Paul.

...ems because it failed this test. The mtuple test was introduced by Marsaglia in 1985, and I gather he wrote his mailing list comment that it "passes all tests" sometime after this, so I am not sure what explains this distinction (though I am not sure if the mtuple test is included in the diehard tests, which he may have been what he was referring to). However, there are clearly some areas where this PRNG runs in to trouble (although the books example is better, another problem is that it can't seem to simulate a value above (1/2)^1+(1/4)^4) after simulating a value below 1e-6. Given...

...01CA)> port 0xe100-0xe13f,0xe000-0xe0ff irq 11 at device 31.5 on pci0 pcm0: [GIANT-LOCKED] pcm0: <Cirrus Logic CS4299 AC97 Codec> It produce very good entropy. I tried those tests to prove its quality: - FIPS 140-2 tests - 'ent' tests: http://www.fourmilab.ch/random/ - Famous 'diehard' tests The full output from diehard tests is here: http://people.freebsd.org/~pjd/misc/sndrand_diehard.txt The idea of using sound card as entropy source was taken from RFC 1750. If people like the idea and someone more skilled than me in this subject can review this stuff, we can start to...

...f Makoto Matsumoto and Takuji Nishimura is a variant of the twisted generalized feedback shift-register algorithm, and is known as the ?Mersenne Twister? generator. It has a Mersenne prime period of 2^19937 - 1 (about 10^6000) and is equi-distributed in 623 dimensions. It has passed the DIEHARD statistical tests. It uses 624 words of state per generator and is comparable in speed to the other generators. The original generator used a default seed of 4357 and choosing s equal to zero in gsl_rng_set reproduces this. Later versions switched to 5489 as the default seed, you can ch...

...ll me how to fix Dovecot to default to Maildir format when autodecting can't find anything? I don't know C, but it seems like it would be a simple thing. Right now, I use the autodetect mailbox feature because we want users to choose to optionally be able to use Mbox format (we have some diehard unix users with non-maildir clients). I have Maildrop setup to check for the existance of a ~/Maildir folder in the user's home, and if it exists, it delivers there. Otherwise it falls back to ~/Mail where mbox style files go. The problem with Dovecot is there is no way to tell the autodetect...

Hi all, The link contains a stingy article on AJAX and other somewhat browser dependant stuff. http://techrepublic.com.com/5254-6257-0.html?forumID=99&threadID=184332&messageID=1963135&id=2926438 Being a webdev myself and also a diehard perfectionist, I could relate to some of it. Let me state that the article does NOT represent my opinion, nor is it to fire up a discussion!! It is merely an FYI. Kind regards, Gerard. -- "Who cares if it doesn''t do anything? It was made with our new Triple-Iso-Bifurcated-Kry...

...o included are two vignettes that can be accessed via vignette("random-intro", package = "random") vignette("random-essay", package = "random") 'random-intro' provides some background on the package as well as initial test results using the dieharder suite by Robert G. Brown. I hope to expand on these tests in the near future. 'random-essay' is a transcript of the web essay at http://www.random.org/essay.html and provides some background on the random.org service. Some information is / will be at http://dirk.eddelbuettel.com/co...

...o included are two vignettes that can be accessed via vignette("random-intro", package = "random") vignette("random-essay", package = "random") 'random-intro' provides some background on the package as well as initial test results using the dieharder suite by Robert G. Brown. I hope to expand on these tests in the near future. 'random-essay' is a transcript of the web essay at http://www.random.org/essay.html and provides some background on the random.org service. Some information is / will be at http://dirk.eddelbuettel.com/co...

Can someone point me to an implementation of the "runs up and runs down" test, or does such beast exist in R? From web searches the "runs up and runs down" test is commonly used for testing pseudo-random number generators and in simulations. John C. Davis describes its use in geology in his book on geological statistics (2002). Having searched the full site, I can locate only

Okay, this is a nitpick but I gotta do it. First the background: I'm trying to convince a diehard mp3 coworker of mine to use ogg for his personal project along side of mp3 and having a tough time. His gripe is that the default players all support mp3 (Winamp and wma) but not ogg and that his listeners won't want to go out and install it. We have now set up a huge shared drive on the office...