Displaying 20 results from an estimated 3000 matches similar to: "How to seed the R random number generator in C (standalone) with an instance of .Random.seed"
2011 Oct 24
3
Create a matrix with increment and element with zero subscript
Hello,
Does anyone knows how to deal with zero subscript in R. I have this code:
for (i in 1:nitems){
+ for (j in 1:ncat-1) {
+ draw<-matrix(rnorm(nitems*(ncat-1),seed1,seed2),nitems,(ncat-1))
+ d<-( sigma_d*draw ) + mu_d
+ draw<-matrix(rtnorm((nitems*(ncat-1)),mean = seed1, sd = seed2, lower = .1, upper = 1.5),nitems,(ncat-1))
+
2003 Oct 16
2
.Random.seed
I am writing a function for the purposes of a simulation. Due to memory
problems, the function sometimes crashes. In order to get around this
problem, I would like to include to be able to save the "last" seed, so I
can pick up with the next run of the simulation after a "crash". I am
having trouble understanding what is going on with .Random.seed!
For each run of the
2012 Feb 17
3
portable parallel seeds project: request for critiques
I've got another edition of my simulation replication framework. I'm
attaching 2 R files and pasting in the readme.
I would especially like to know if I'm doing anything that breaks
.Random.seed or other things that R's parallel uses in the
environment.
In case you don't want to wrestle with attachments, the same files are
online in our SVN
2012 Jan 27
2
The following code (using rgamma) hangs
Hi,
I'm seeing something that may be a bug in R's standalone math library,
which is packaged by Debian as r-mathlib. I reported it to the Debian BTS
as http://bugs.debian.org/657573
I'm using Debian squeeze, and the code was tested with r-mathlib 2.11.1-6
(default on stable) and 2.14.1-1 (from testing/unstable).
I summarize this report below. The following code with the R math
2002 Jan 24
2
random number generation issues with r and compiled C code
Dear People,
I have been writing a simulation routine that is currently entirely
written in c++. I've been using the R standalone math library to give me
random number generation for this. However, I have had to set the seed
myself, and I am using
set_seed(time(NULL), clock)
for every call to unif_rand().
However, this works really badly. The random numbers aren't uniform at
all. Does
2002 Jan 14
1
trouble using R Mathlib as standalone
Dear People,
I am trying to use R's Math library as standalone, as documented in
/src/nmath/standalone. I am using C++ in Debian testing, and the versions
are as follows:
ii g++-3.0 3.0.3-1 The GNU C++ compiler.
ii r-mathlib 1.4.0-1 `GNU S' - Standalone R math library
I have a file (rand.cc) as follows. I don't think that lattice.hh or mh.hh
are very
2008 Jan 02
1
setting the seed in standalone code using Rlib
Hi,
Is the below -- setSeed -- an okay way to set the seed in standalone
applications making use of Rlib? It seems to work as expected. Is
there a better way to do it? (I'm also looking at do_setseed but am
unsure what to supply as op. findFun("set.seed", R_GlobalEnv)?) Thanks
much.
--
David Faden, dfaden at iastate.edu
AIM: pitulx
--
#include <assert.h>
#include
2006 Mar 03
1
Fwd: Re: calling R's library using C
Sorry, forgot to switch the header to the R group....
--- Globe Trotter <itsme_410 at yahoo.com> wrote:
> Date: Thu, 2 Mar 2006 19:35:21 -0800 (PST)
> From: Globe Trotter <itsme_410 at yahoo.com>
> Subject: Re: [R] calling R's library using C
> To: Dirk Eddelbuettel <edd at debian.org>
>
> Hi, Dirk:
>
> Thanks for all the help. I thought I would
2023 Feb 16
0
User-defined RNG with the standalone Rmath library
I have two questions about using a user-defined random number generator (RNG) with the standalone Rmath library. The default RNG with the standalone Rmath library is the Marsaglia-multicarry generator, which has poor properties. The "R Installation and Administration" manual, in the section "The standalone Rmath library", states that:
```
A little care is needed to use the
2003 Nov 04
1
glm offset and interaction bugs (PR#4941)
Full_Name: Charles J. Geyer
Version: 1.8.0
OS: i686-pc-linux-gnu (Suse 8.2)
Submission from: (NULL) (134.84.86.22)
Two bugs (perhaps related, perhaps independent) revealed by the same
Poisson regression with offset
mydata <- read.table(url("http://www.stat.umn.edu/geyer/5931/mle/seeds.txt"))
out.fubar <- glm(seedlings ~ burn01 + vegtype * burn02 +
offset(log(totalseeds)),
2003 Dec 14
1
compile error with C code and standalone R math C library
Dear People,
I just went back to an old piece of C code. On trying to compile it with
the R math standalone C library I got the following error. Can anyone
enlighten me what I am doing wrong, if anything? C file (rr-sa.c) follows.
I'm on Debian sarge. I'm running R version 1.8.1. Gcc is version
3.3.1.
Thanks in advance.
Faheem.
2005 Nov 28
1
No Rmath.h when making just standalone library
When making only the standalone math library, include/Rmath.h
is not there, so compilation fails. A solution is to go to
src/include/ and just say `make Rmath.h' there first.
This is with R-2.2.0 on GNU/Linux on i686. The failing steps
are:
tar xzf ../R-2.2.0.tar.gz
./configure
cd src/nmath/standalone
make
Would be nice if this worked, or if the issue were just
mentioned in
2007 Aug 31
0
Studio 11 compiling of Rmath standalone versus compiling R
Hi,
I have a UNIX-Solaris-Sparc-Studio 11 compilers question. Since it's not exactly a programming question, I'm posting it here instead of to the developers list.
Here's the relevant info:
1) I'm using SunOS 5.9 on a 32 bit machine without parallel processing. The chip is Sparc.
2) I've installed the Sun Studio 11 compilers.
3) I've successfully built and tested R 2.5.1
2020 Jun 02
0
R standalone Rmath library - missing log1pexp(), rnbeta()
>>>>> William Birkett
>>>>> on Mon, 1 Jun 2020 15:16:07 -0400 writes:
> I built the the standalone Rmath library,
> https://cran.r-project.org/doc/manuals/r-release/R-admin.html#The-standalone-Rmath-library
> <https://cran.r-project.org/doc/manuals/r-release/R-admin.html#The-standalone-Rmath-library>
> The build process went
2003 Apr 01
1
using Rmath standalone
Hi,
I am a c/c++ programmer attempting to utilise the Rmath library (looks VERY useful). I have downloaded the Rsource and compiled the library as recommened (compiled on windows 98 using the cygwin environment). But whenever i try to use functions from the library i get similar error messages -
eg. using the function dnorm(double, double...... etc ) i get the message : "undefined
2004 Apr 14
1
question about /nmath/standalone
Hello,
I can't link a c code with Mathlib according to introduction of R
manual "Writing R Extensions", page 60.
It is written :
"It is possible to build Mathlib, the R set of mathematical functions
documented in
'Rmath.h?, as a standalone library 'libRmath? under Unix and Windows. (This
includes
the functions documented in Section 5.7 [Numerical analysis
2008 Jan 29
1
The standalone Rmath library and VC++ 2003
Linking my VC++ application with the standalone Rmath library yields the
following;
------ Build started: Project: Complex plugin, Configuration: Debug
Win32 ------
Linking...
Creating library .\../Debug/complex_plugin.lib and object
.\../Debug/complex_plugin.exp
libRmath.a(mlutils.o) : warning LNK4217: locally defined symbol __iob
imported in function _REprintf
libRmath.a(dbeta.o) :
2002 Apr 30
1
makefile for standalone lib
It appears the Makefile.win in
src/nmath/standalone might need some modification since
cd src/nmath/gnuwin32
make -f Makefile.win
make -f Makefile.win test
fails. However if I remove libRmath.a from line 15
OR
modify lines 67/68 replacing Rmath.a with libRmath.a then
make -f Makefile.win test
goes as expected.
_________________________________________________________________
2006 Jan 05
2
random seed question
Greetings,
I am trying to write a C++ subroutine of my random number generator. Based
on tutorial in Writing R Extensions, one should call GetRNGstate() before
and PutRNGstate() after calling R's random variate generation routines. Now
suppose my function would generate n(n>1) numbers by a loop, do I need to
call these two functions at each iteration? This certainly increases
computation
2005 Jun 28
1
GetRNGstate() crashes in Windows
Hi,
Has anyone managed to successfully call GetRNGstate() / PutRNGstate()
without crashing in a Windows environment (spec. XP)? I've compiled
successfully using both the latest Cygwin, latest Mingw, and the version
of Mingw suggested in "Building R for Windows" website, but when the
executable runs, it crashes; the functions themselves can run when I omit