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7c673cae FG |
1 | // (C) Copyright John Maddock 2006. |
2 | // Use, modification and distribution are subject to the | |
3 | // Boost Software License, Version 1.0. (See accompanying file | |
4 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
20effc67 | 6 | #include "mp_t.hpp" |
7c673cae FG |
7 | #include <boost/math/special_functions/gamma.hpp> |
8 | #include <boost/math/special_functions/beta.hpp> | |
9 | #include <boost/math/constants/constants.hpp> | |
10 | #include <boost/lexical_cast.hpp> | |
11 | #include <fstream> | |
12 | #include <map> | |
13 | #include <boost/math/tools/test_data.hpp> | |
14 | #include <boost/random.hpp> | |
7c673cae FG |
15 | |
16 | using namespace boost::math::tools; | |
17 | using namespace boost::math; | |
18 | using namespace std; | |
19 | ||
20 | #include <libs/math/test/table_type.hpp> | |
21 | ||
22 | #define T double | |
23 | #define SC_(x) static_cast<double>(x) | |
24 | #include <libs/math/test/ibeta_int_data.ipp> | |
25 | ||
26 | int main(int, char* []) | |
27 | { | |
28 | std::cout << "Enter name of test data file [default=ibeta_derivative_data.ipp]"; | |
29 | std::string line; | |
30 | std::getline(std::cin, line); | |
31 | boost::algorithm::trim(line); | |
32 | if(line == "") | |
33 | line = "ibeta_derivative_data.ipp"; | |
34 | std::ofstream ofs(line.c_str()); | |
35 | ofs << std::scientific << std::setprecision(40); | |
36 | ||
37 | ofs << | |
38 | "// (C) Copyright John Maddock 2006.\n" | |
39 | "// Use, modification and distribution are subject to the\n" | |
40 | "// Boost Software License, Version 1.0. (See accompanying file\n" | |
41 | "// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\n" | |
42 | "\n\n" | |
43 | "static const boost::array<boost::array<typename table_type<T>::type, 4>, " << ibeta_int_data.size() << "> ibeta_derivative_small_data = { {\n"; | |
44 | ||
45 | ||
46 | for(unsigned i = 0; i < ibeta_int_data.size(); ++i) | |
47 | { | |
48 | mp_t a(ibeta_int_data[i][0]); | |
49 | mp_t b(ibeta_int_data[i][1]); | |
50 | mp_t x(ibeta_int_data[i][2]); | |
51 | ||
52 | std::cout << a << std::endl; | |
53 | std::cout << b << std::endl; | |
54 | std::cout << x << std::endl; | |
55 | ||
56 | mp_t bet = exp(boost::math::lgamma(a) + boost::math::lgamma(b) - boost::math::lgamma(a + b)); | |
57 | mp_t d = pow(1 - x, b - 1) * pow(x, a - 1) / bet; | |
58 | ||
59 | ofs << "{{ SC_(" << a << "), SC_(" << b << "), SC_(" << x << "), SC_(" << d << ") }}\n"; | |
60 | } | |
61 | ||
62 | ofs << "}};\n\n"; | |
63 | ||
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
68 |