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/* Author: G. Jungman
*/
#include <config.h>
#include <stdlib.h>
#include <gsl/gsl_ieee_utils.h>
#include <gsl/gsl_qrng.h>
#include <gsl/gsl_test.h>
void test_sobol(void)
{
int status = 0;
double v[3];
/* int i; */
/* test in dimension 2 */
gsl_qrng * g = gsl_qrng_alloc(gsl_qrng_sobol, 2);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.25 || v[1] != 0.75 );
gsl_qrng_get(g, v);
status += ( v[0] != 0.375 || v[1] != 0.375 );
gsl_qrng_free(g);
gsl_test (status, "Sobol d=2");
status = 0;
/* test in dimension 3 */
g = gsl_qrng_alloc(gsl_qrng_sobol, 3);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.25 || v[1] != 0.75 || v[2] != 0.25 );
gsl_qrng_get(g, v);
status += ( v[0] != 0.375 || v[1] != 0.375 || v[2] != 0.625 );
gsl_test (status, "Sobol d=3");
status = 0;
gsl_qrng_init(g);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.25 || v[1] != 0.75 || v[2] != 0.25 );
gsl_qrng_get(g, v);
status += ( v[0] != 0.375 || v[1] != 0.375 || v[2] != 0.625 );
gsl_qrng_free(g);
gsl_test (status, "Sobol d=3 (reinitialized)");
}
void test_nied2(void)
{
int status = 0;
double v[3];
/* int i; */
/* test in dimension 2 */
gsl_qrng * g = gsl_qrng_alloc(gsl_qrng_niederreiter_2, 2);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.75 || v[1] != 0.25 );
gsl_qrng_get(g, v);
status += ( v[0] != 0.25 || v[1] != 0.75 );
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.625 || v[1] != 0.125 );
gsl_qrng_free(g);
gsl_test (status, "Niederreiter d=2");
status = 0;
/* test in dimension 3 */
g = gsl_qrng_alloc(gsl_qrng_niederreiter_2, 3);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.75 || v[1] != 0.25 || v[2] != 0.3125 );
gsl_qrng_get(g, v);
status += ( v[0] != 0.25 || v[1] != 0.75 || v[2] != 0.5625 );
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.625 || v[1] != 0.125 || v[2] != 0.6875 );
gsl_test (status, "Niederreiter d=3");
status = 0;
gsl_qrng_init(g);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.75 || v[1] != 0.25 || v[2] != 0.3125 );
gsl_qrng_get(g, v);
status += ( v[0] != 0.25 || v[1] != 0.75 || v[2] != 0.5625 );
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
gsl_qrng_get(g, v);
status += ( v[0] != 0.625 || v[1] != 0.125 || v[2] != 0.6875 );
gsl_qrng_free(g);
gsl_test (status, "Niederreiter d=3 (reinitialized)");
}
int main()
{
gsl_ieee_env_setup ();
test_sobol();
test_nied2();
exit (gsl_test_summary ());
}
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