Math::GSL::QRNG - Quasi-random number generators
# use OO approach use Math::GSL::QRNG; my $QRNG = Math::GSL::QRNG::Sobol->new(2); my @samples = $QRNG->get(); # use GSL interface use Math::GSL::QRNG qw/:all/;
This module interfaces with GNU Scientific Library quasi-random number generators (QRNG).
The OO Interface described in this documentation is available to all different subclasses, namely:
Reinitializes the generator to its starting point. Note that quasi-random sequences do not use a seed and always produce the same set of values.
Retrieves the next point from the sequence generator. Returns
undef on error.
my @points = $qrng->get();
Retrieves the QRNG name.
my $name = $qrng->name();
Returns the size of the QRNG state.
Returns an exact copy of the current QRNG.
Here is a list of all the functions included in this module :
gsl_qrng_alloc($T, $n)- This function returns a pointer to a newly-created instance of a quasi-random sequence generator of type $T and dimension $d. The type $T must be one of the constants included in this module.
gsl_qrng_clone($q)- This function returns a pointer to a newly created generator which is an exact copy of the generator $q.
gsl_qrng_memcpy($dest, $src)- This function copies the quasi-random sequence generator $src into the pre-existing generator $dest, making $dest into an exact copy of $src. The two generators must be of the same type.
gsl_qrng_free($q)- This function frees all the memory associated with the generator $q. Don't call this function explicitly. It will be called automatically in DESTROY.
gsl_qrng_init($q)- This function reinitializes the generator $q to its starting point. Note that quasi-random sequences do not use a seed and always produce the same set of values.
gsl_qrng_name($q)- This function returns a pointer to the name of the generator $q.
gsl_qrng_size($q)- This function returns the size of the state of generator r from the generator $q. You can use this information to access the state directly.
gsl_qrng_state($q)- This function returns a pointer to the state of generator r from the generator $q. You can use this information to access the state directly.
This module also contains the following constants :
For more informations on the functions, we refer you to the GSL offcial documentation: http://www.gnu.org/software/gsl/manual/html_node/
Jonathan "Duke" Leto <firstname.lastname@example.org> Thierry Moisan <email@example.com> Alberto Simões <firstname.lastname@example.org>
Copyright (C) 2008-2014 Jonathan "Duke" Leto and Thierry Moisan
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.