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#ifndef EXTENT_SAMPLING_H
#define EXTENT_SAMPLING_H
#include <gsl/gsl_rng.h>
#include <gsl/gsl_rstat.h>
#include <gsl/gsl_vector.h>
typedef struct {
double (*oracle) (const gsl_rng*, const gsl_vector*, void*);
void *params;
} extent_oracle_t;
typedef double (*integrand_t) (double, const gsl_vector*);
void init_random (void);
double volume
(extent_oracle_t *extent_oracle, double true_volume,
const gsl_rng* r, unsigned int dimension, double rtol,
gsl_rstat_workspace* stats);
double volume_window
(extent_oracle_t *extent_oracle, double true_volume,
const gsl_rng* r, unsigned int dimension, double rtol,
unsigned int* number_of_samples);
double integral
(integrand_t integrand, extent_oracle_t *extent_oracle, double true_integral,
const gsl_rng* r, unsigned int dimension, double rtol,
gsl_rstat_workspace* stats);
double volume_cone
(extent_oracle_t *extent_oracle, const gsl_rng* r,
const gsl_vector* mean, double omega_min, double omega_max,
unsigned int number_of_samples, double* variance);
double volume_experiment
(extent_oracle_t *extent_oracle, const gsl_rng* r,
const gsl_vector* mean, unsigned int samples_per_cone,
double solid_angle_factor, double solid_angle_threshold_exponent_factor,
unsigned int* number_of_samples);
#endif
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