Displaying 3 results from an estimated 3 matches for "rngtab".
2009 Jul 30
3
user supplied random number generators
...able[kind].n_seed = ns;
RNG_Table[kind].i_seed = (Int32 *) User_unif_seedloc();
consistent with the earlier definition of RNG_Table entries as
typedef struct {
RNGtype kind;
N01type Nkind;
char *name; /* print name */
int n_seed; /* length of seed vector */
Int32 *i_seed;
} RNGTAB;
This suggests that the type of user_unif_seedloc is Int32*, not int *.
It also suggests that user_unif_nseed should return the number of 32 bit
integers. The code for PutRNGstate(), for example, uses them in just
that way.
While the dominant model, even on 64 bit hardware, is probably to leave...
1999 May 04
1
rnorm
Brian
I've been playing a bit with the Wichmann-Hill RNG. I would prefer to have
normally distributed random numbers and I think I have things generally worked
out to use Wichmann-Hill and then Box-Muller. In the process, I was looking at
R's rnorm.c, but could not figure out what transformation is used in R to
convert uniform rv's to normal rv's. Do you know? It looks like there
1999 Feb 24
2
Compiling R on Sunos
I'm looking for some help in getting R to compile on Sunos. We run a
collection of Sunos and Solaris machines in the department here. I got
to compile on Solaris 2.5.1 using gcc 2.7.2.2. On my Sunos 4.1.3 (and
I've tried it on Sunos 4.1.4 as well) machines, it crashes during the
compile. I'm using gcc 2.8.1 on there. It gets to this point:
gcc -g -O2 -I../include