On 11/02/13 10:23, c s wrote:
On Sun, Feb 10, 2013 at 12:32 AM, Yan Zhou <zhou...@me.com> wrote:
To have Armadillo randn use MT19937 is not easy.
Since it use srand() for seed, I guess it also use C rand(),
whose quality is quite questionable.
The quality of the rand() function from C depends on the
implementation in libc, which varies from system to system.
While I'd like to incorporate a Mersenne-Twister random number
generator directly in Armadillo, it would either add a dependency on
Boost, or on C++11. Boost might not be available on a user's system,
and the degree of support for C++11 features varies from compiler to
compiler. We also have to bear in mind that R folks currently
disallow CRAN packages that use C++11.
If you just want a mersenne-twister random number generator, I will
extract it from boost (which is under a fairly free licence).
Chris
_______________________________________________
Rcpp-devel mailing list
Rcpp-devel@lists.r-forge.r-project.org
https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
