It does not solve your problem, but in the future, you should use the halton function, since Diethelm Wuertz and I decided it to move runif.halton (based on fortran code) to the randtoolbox package. In the man page, there is an example of plot:
hist(halton(n = 5000, dim = 1, norm=TRUE), main = "Normal Halton", xlab = "x", col = "steelblue3", border = "white") But unfortunately, I do not have a 64 bit version of R, so I can not help you. Let me know if there is a problem with the fortran code. Christophe Le 15 sept. 09 à 03:55, Anirban Mukherjee a écrit : > Sorry, but of course. > > rnorm.halton should be "almost" identical to rnorm (rnorm gives draws > from a 0 mean, 1sd Normal). Halton sequences (amongst other things) > allow one to draw from the normal in a "more intelligent" fashion when > integrating. Using hist, you should see the classic "bell curve" > centered around 0. Almost identical to > > hist(rnorm(1000), plot=TRUE) > > The 32 bit "version" gives the bell curve. My 64 bit version gives a > totally different plot (nothing subtle) ... some times with only > positive values for all 100 draws. My 64 bit version of rnorm.halton > also often outputs a bunch of NaNs. If both your plots look like a > bell curve, the problem is on my machine/end. > > Thanks very much: do greatly appreciate it. > > Best, > Anirban > > On Mon, Sep 14, 2009 at 9:31 PM, Steve Lianoglou > <[email protected]> wrote: >> Hi, >> >> On Mon, Sep 14, 2009 at 8:28 PM, Anirban Mukherjee <[email protected] >> > >> wrote: >>> To add: >>> >>> If I try to install using the mac.binary, it tells me (on opening >>> the >>> 64 bit app) that the package is not installed for x64. And does not >>> let me load the library when using 64 bit mode. However, if I >>> install >>> the package from source, then it installs for x64, but gives me >>> weird >>> results. >>> >>> Again: would appreciate if some one could confirm so that I can >>> contact the authors and let them know. I do need Halton normals for >>> some thing I am working on, and I am sitting right on that >>> borderline >>> point where the memory constraints of the 32 bit app are making me >>> lose sleep ... >> >> I wouldn't know what to look for to tell you if it's going wrong or >> not. >> >> I have no idea about anything related to financial modeling and don't >> have the fOptions package installed anyway. >> >> Perhaps if you post the two images you get: >> i. what you expect to see/what you get from 32bit >> ii. the wrong image that you're getting from the 64bit version >> >> One of us can confirm/deny that we get the same thing. >> >> Otherwise, I really can't give you an educated answer w/o having to >> looking into what this 'halton' stuff is anyway ... >> >> So .. help us help you :-) >> >> I'm not sitting at a 64 bit machine atm, so hopefully someone else >> can >> help you before I get back to school tomorrow ... >> >> -steve >> >> -- >> Steve Lianoglou >> Graduate Student: Computational Systems Biology >> | Memorial Sloan-Kettering Cancer Center >> | Weill Medical College of Cornell University >> Contact Info: http://cbio.mskcc.org/~lianos/contact >> > > > > -- > Anirban Mukherjee | Assistant Professor, Marketing | LKCSB, SMU > 5062 School of Business, 50 Stamford Road, Singapore 178899 | > +65-6828-1932 > > _______________________________________________ > R-SIG-Mac mailing list > [email protected] > https://stat.ethz.ch/mailman/listinfo/r-sig-mac -- Christophe Dutang Ph.D. student at ISFA, Lyon, France website: http://dutangc.free.fr [[alternative HTML version deleted]]
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