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[apps/probability] Fisher tests

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Léa Saviot
2020-01-14 10:21:26 +01:00
parent 55a4e3d94c
commit 09a2d554d1
1 changed files with 24 additions and 0 deletions
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apps/probability/test/distributions.cpp
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@@ -7,6 +7,7 @@
#include "../distribution/chi_squared_distribution.h"
#include "../distribution/geometric_distribution.h"
#include "../distribution/student_distribution.h"
#include "../distribution/fisher_distribution.h"
void assert_cumulative_distributive_function_direct_and_inverse_is(Probability::Distribution * distribution, double x, double result) {
double r = distribution->cumulativeDistributiveFunctionAtAbscissa(x);
@@ -92,3 +93,26 @@ QUIZ_CASE(geometric_distribution) {
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 7.0, 0.8322278399999998299563230830244719982147216796875);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 3.0, 0.5904);
}
QUIZ_CASE(fisher_distribution) {
// Fisher distribution with d1 = 1 and d2 = 1
Probability::FisherDistribution distribution;
distribution.setParameterAtIndex(1.0, 0);
distribution.setParameterAtIndex(1.0, 1);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 1.7, 0.5834784097728860);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 3.3, 0.6796445888753);
// Fisher distribution with d1 = 3 and d2 = 2
distribution.setParameterAtIndex(3.0, 0);
distribution.setParameterAtIndex(2.0, 1);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 2.0, 0.6495190528383);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 3.0, 0.7400733003272);
// Fisher distribution with d1 = 100 and d2 = 87
distribution.setParameterAtIndex(100.0, 0);
distribution.setParameterAtIndex(87.0, 1);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 0.6, 0.00688477308162587);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 1.4, 0.94560850441205857);
assert_cumulative_distributive_function_direct_and_inverse_is(&distribution, 1.425, 0.95425004959692871775);
}