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Accepted modifications for nc close to 0

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This commit is contained in:
Jacob Hass
2026-01-27 12:51:55 -08:00
parent 59a4e7a46d
commit 03bfa3362d
2 changed files with 21 additions and 19 deletions
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18
test/test_nc_f.cpp
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@@ -159,12 +159,10 @@ void test_spot(
}
template <class RealType> // Any floating-point type RealType.
void test_spots(RealType)
void test_spots(RealType, const char* name = nullptr)
{
RealType tolerance = boost::math::tools::epsilon<RealType>() * 10000;
cout << "Tolerance = " << (tolerance / 100) << "%." << endl;
std::cout << "Testing spot values with type " << name << " (Tolerance = " << (tolerance / 100) << "%)." << std::endl;
//
// Spot tests from Mathematica computed values:
//
@@ -337,8 +335,8 @@ void test_spots(RealType)
boost::math::non_central_f_distribution<RealType> dist_no_centrality(a, b, nc);
for (RealType x : x_vals)
{
RealType P = pdf(dist_no_centrality, x);
BOOST_CHECK_CLOSE(dist.find_non_centrality(x, a, b, P), static_cast<RealType>(0), tolerance);
RealType P = cdf(dist_no_centrality, x);
BOOST_CHECK(dist.find_non_centrality(x, a, b, P) < tolerance);
}
// Case when P=1 or P=0
BOOST_MATH_CHECK_THROW(dist.find_non_centrality(x, a, b, 1), std::domain_error);
@@ -354,12 +352,12 @@ BOOST_AUTO_TEST_CASE( test_main )
// Basic sanity-check spot values.
expected_results();
// (Parameter value, arbitrarily zero, only communicates the floating point type).
test_spots(0.0F); // Test float.
test_spots(0.0); // Test double.
test_spots(0.0F, "float"); // Test float.
test_spots(0.0, "double"); // Test double.
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
test_spots(0.0L); // Test long double.
test_spots(0.0L, "long double"); // Test long double.
#if !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x582)) && !defined(BOOST_MATH_NO_REAL_CONCEPT_TESTS)
test_spots(boost::math::concepts::real_concept(0.)); // Test real concept.
test_spots(boost::math::concepts::real_concept(0.), "real_concept"); // Test real concept.
#endif
#endif