mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-10-31 04:50:34 -04:00
87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
// (C) Copyright John Maddock 2006.
|
|
// Use, modification and distribution are subject to the
|
|
// Boost Software License, Version 1.0. (See accompanying file
|
|
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
#include <boost/math/special_functions/beta.hpp>
|
|
#include <boost/math/constants/constants.hpp>
|
|
#include <boost/lexical_cast.hpp>
|
|
#include <fstream>
|
|
#include <boost/math/tools/test_data.hpp>
|
|
#include <boost/random.hpp>
|
|
#include "mp_t.hpp"
|
|
|
|
using namespace boost::math::tools;
|
|
|
|
//
|
|
// Force trunctation to float precision of input values:
|
|
// we must ensure that the input values are exactly representable
|
|
// in whatever type we are testing, or the output values will all
|
|
// be thrown off:
|
|
//
|
|
float external_f;
|
|
float force_truncate(const float* f)
|
|
{
|
|
external_f = *f;
|
|
return external_f;
|
|
}
|
|
|
|
float truncate_to_float(mp_t r)
|
|
{
|
|
float f = boost::math::tools::real_cast<float>(r);
|
|
return force_truncate(&f);
|
|
}
|
|
|
|
boost::mt19937 rnd;
|
|
boost::uniform_real<float> ur_a(1.0F, 5.0F);
|
|
boost::variate_generator<boost::mt19937, boost::uniform_real<float> > gen(rnd, ur_a);
|
|
boost::uniform_real<float> ur_a2(0.0F, 100.0F);
|
|
boost::variate_generator<boost::mt19937, boost::uniform_real<float> > gen2(rnd, ur_a2);
|
|
|
|
struct ibeta_inv_data_generator
|
|
{
|
|
boost::math::tuple<mp_t, mp_t, mp_t, mp_t, mp_t> operator()(mp_t ap, mp_t bp, mp_t x_)
|
|
{
|
|
float a = truncate_to_float(real_cast<float>(gen() * pow(mp_t(10), ap)));
|
|
float b = truncate_to_float(real_cast<float>(gen() * pow(mp_t(10), bp)));
|
|
float x = truncate_to_float(real_cast<float>(x_));
|
|
std::cout << a << " " << b << " " << x << std::flush;
|
|
mp_t inv = boost::math::ibeta_inv(mp_t(a), mp_t(b), mp_t(x));
|
|
std::cout << " " << inv << std::flush;
|
|
mp_t invc = boost::math::ibetac_inv(mp_t(a), mp_t(b), mp_t(x));
|
|
std::cout << " " << invc << std::endl;
|
|
return boost::math::make_tuple(a, b, x, inv, invc);
|
|
}
|
|
};
|
|
|
|
int main(int argc, char*argv [])
|
|
{
|
|
bool cont;
|
|
std::string line;
|
|
|
|
parameter_info<mp_t> arg1, arg2, arg3;
|
|
test_data<mp_t> data;
|
|
|
|
std::cout << "Welcome.\n"
|
|
"This program will generate spot tests for the inverse incomplete beta function:\n"
|
|
" ibeta_inv(a, p) and ibetac_inv(a, q)\n\n";
|
|
|
|
arg1 = make_periodic_param(mp_t(-5), mp_t(6), 11);
|
|
arg2 = make_periodic_param(mp_t(-5), mp_t(6), 11);
|
|
arg3 = make_random_param(mp_t(0.0001), mp_t(1), 10);
|
|
|
|
arg1.type |= dummy_param;
|
|
arg2.type |= dummy_param;
|
|
arg3.type |= dummy_param;
|
|
|
|
data.insert(ibeta_inv_data_generator(), arg1, arg2, arg3);
|
|
|
|
line = "ibeta_inv_data.ipp";
|
|
std::ofstream ofs(line.c_str());
|
|
ofs << std::scientific << std::setprecision(40);
|
|
write_code(ofs, data, "ibeta_inv_data");
|
|
|
|
return 0;
|
|
}
|
|
|