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Diffstat (limited to 'src/Persistence_representations/test/persistence_lanscapes_test.cpp')
| -rw-r--r-- | src/Persistence_representations/test/persistence_lanscapes_test.cpp | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/src/Persistence_representations/test/persistence_lanscapes_test.cpp b/src/Persistence_representations/test/persistence_lanscapes_test.cpp new file mode 100644 index 00000000..21ef18a0 --- /dev/null +++ b/src/Persistence_representations/test/persistence_lanscapes_test.cpp @@ -0,0 +1,346 @@ +/* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT. + * See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details. + * Author(s): Pawel Dlotko + * + * Copyright (C) 2016 Inria + * + * Modification(s): + * - YYYY/MM Author: Description of the modification + */ + +#define BOOST_TEST_DYN_LINK +#define BOOST_TEST_MODULE "Persistence_landscapes_test" +#include <boost/test/unit_test.hpp> +#include <gudhi/reader_utils.h> +#include <gudhi/Persistence_landscape.h> +#include <gudhi/Unitary_tests_utils.h> + +#include <iostream> +#include <limits> + +using namespace Gudhi; +using namespace Gudhi::Persistence_representations; + +double epsilon = 0.0005; + +BOOST_AUTO_TEST_CASE(check_construction_of_landscape) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + Persistence_landscape q; + q.load_landscape_from_file("data/file_with_landscape_from_file_with_diagram"); + BOOST_CHECK(p == q); +} + +BOOST_AUTO_TEST_CASE(check_construction_of_landscape_form_gudhi_style_file) { + Persistence_landscape p("data/persistence_file_with_four_entries_per_line", 1); + // p.print_to_file("persistence_file_with_four_entries_per_line_landscape"); + Persistence_landscape q; + q.load_landscape_from_file("data/persistence_file_with_four_entries_per_line_landscape"); + BOOST_CHECK(p == q); +} + +BOOST_AUTO_TEST_CASE(check_computations_of_integrals) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_integral_of_landscape(), 2.34992, epsilon); +} + +BOOST_AUTO_TEST_CASE(check_computations_of_integrals_for_each_level_separatelly) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + + std::vector<double> integrals_for_different_levels; + integrals_for_different_levels.push_back(0.216432); + integrals_for_different_levels.push_back(0.204763); + integrals_for_different_levels.push_back(0.188793); + integrals_for_different_levels.push_back(0.178856); + integrals_for_different_levels.push_back(0.163142); + integrals_for_different_levels.push_back(0.155015); + integrals_for_different_levels.push_back(0.143046); + integrals_for_different_levels.push_back(0.133765); + integrals_for_different_levels.push_back(0.123531); + integrals_for_different_levels.push_back(0.117393); + integrals_for_different_levels.push_back(0.111269); + integrals_for_different_levels.push_back(0.104283); + integrals_for_different_levels.push_back(0.0941308); + integrals_for_different_levels.push_back(0.0811208); + integrals_for_different_levels.push_back(0.0679001); + integrals_for_different_levels.push_back(0.0580801); + integrals_for_different_levels.push_back(0.0489647); + integrals_for_different_levels.push_back(0.0407936); + integrals_for_different_levels.push_back(0.0342599); + integrals_for_different_levels.push_back(0.02896); + integrals_for_different_levels.push_back(0.0239881); + integrals_for_different_levels.push_back(0.0171792); + integrals_for_different_levels.push_back(0.0071511); + integrals_for_different_levels.push_back(0.00462067); + integrals_for_different_levels.push_back(0.00229033); + integrals_for_different_levels.push_back(0.000195296); + + for (size_t level = 0; level != p.size(); ++level) { + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_integral_of_a_level_of_a_landscape(level), + integrals_for_different_levels[level], epsilon); + } +} + +BOOST_AUTO_TEST_CASE(check_computations_of_integrals_of_powers_of_landscape) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + + std::vector<double> integrals_for_different_powers; + integrals_for_different_powers.push_back(17.1692); + integrals_for_different_powers.push_back(2.34992); + integrals_for_different_powers.push_back(0.49857); + integrals_for_different_powers.push_back(0.126405); + integrals_for_different_powers.push_back(0.0355235); + + for (size_t power = 0; power != 5; ++power) { + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_integral_of_landscape((double)power), + integrals_for_different_powers[power], epsilon); + } +} + +BOOST_AUTO_TEST_CASE(check_computations_of_values_on_different_points) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(1, 0.0), 0., epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(1, 0.1), 0.0692324, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(1, 0.2), 0.163369, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(1, 0.3), 0.217115, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(2, 0.0), 0., epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(2, 0.1), 0.0633688, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(2, 0.2), 0.122361, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(2, 0.3), 0.195401, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(3, 0.0), 0., epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(3, 0.1), 0.0455386, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(3, 0.2), 0.0954012, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_value_at_a_given_point(3, 0.3), 0.185282, epsilon); +} + +BOOST_AUTO_TEST_CASE(check_computations_sum_differences_and_multiplications) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + Persistence_landscape second; + second.load_landscape_from_file("data/file_with_landscape_from_file_with_diagram_1"); + + Persistence_landscape sum = p + second; + Persistence_landscape difference = p - second; + Persistence_landscape multiply_by_scalar = 10 * p; + + Persistence_landscape template_sum; + template_sum.load_landscape_from_file("data/sum"); + + Persistence_landscape template_difference; + template_difference.load_landscape_from_file("data/difference"); + + Persistence_landscape template_multiply_by_scalar; + template_multiply_by_scalar.load_landscape_from_file("data/multiply_by_scalar"); + + BOOST_CHECK(sum == template_sum); + BOOST_CHECK(difference == template_difference); + BOOST_CHECK(multiply_by_scalar == template_multiply_by_scalar); +} + +BOOST_AUTO_TEST_CASE(check_computations_of_maxima_and_norms) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + Persistence_landscape second; + second.load_landscape_from_file("data/file_with_landscape_from_file_with_diagram_1"); + Persistence_landscape sum = p + second; + + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_maximum(), 0.431313, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_norm_of_landscape(1), 2.34992, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_norm_of_landscape(2), 0.706095, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_norm_of_landscape(3), 0.501867, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(compute_distance_of_landscapes(p, sum, 1), 27.9323, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(compute_distance_of_landscapes(p, sum, 2), 2.35199, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(compute_distance_of_landscapes(p, sum, std::numeric_limits<double>::max()), 0.464478, + epsilon); +} + +BOOST_AUTO_TEST_CASE(check_default_parameters_of_distances) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + + std::vector<std::pair<double, double> > diag1 = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram_1"); + Persistence_landscape q(diag1); + + double dist_numeric_limit_max = p.distance(q, std::numeric_limits<double>::max()); + double dist_infinity = p.distance(q, std::numeric_limits<double>::infinity()); + + GUDHI_TEST_FLOAT_EQUALITY_CHECK(dist_numeric_limit_max, dist_infinity); +} + +BOOST_AUTO_TEST_CASE(check_computations_of_averages) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + std::vector<std::pair<double, double> > diag2 = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram_1"); + Persistence_landscape q(diag2); + Persistence_landscape av; + av.compute_average({&p, &q}); + + Persistence_landscape template_average; + template_average.load_landscape_from_file("data/average"); + BOOST_CHECK(template_average == av); +} + +BOOST_AUTO_TEST_CASE(check_computations_of_distances) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + std::vector<std::pair<double, double> > diag2 = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram_1"); + Persistence_landscape q(diag2); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.distance(q), 25.5824, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.distance(q, 2), 2.1264, epsilon); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.distance(q, std::numeric_limits<double>::max()), 0.359068, epsilon); +} + +BOOST_AUTO_TEST_CASE(check_computations_of_scalar_product) { + std::vector<std::pair<double, double> > diag = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram"); + Persistence_landscape p(diag); + std::vector<std::pair<double, double> > diag2 = + read_persistence_intervals_in_one_dimension_from_file("data/file_with_diagram_1"); + Persistence_landscape q(diag2); + GUDHI_TEST_FLOAT_EQUALITY_CHECK(p.compute_scalar_product(q), 0.754498, epsilon); +} + +// Below I am storing the code used to generate tests for that functionality. +/* +if ( argc != 2 ) + { + std::cerr << "To run this program, please provide a name of a file with persistence landscape \n"; + //return 1; + } + Persistence_landscape p("data/file_with_diagram"); + + Persistence_landscape q; + q.load_landscape_from_file( "file_with_landscape_from_file_with_diagram" ); + + if ( p != q ) + { + cout << "Not equal \n"; + } + + double integral = p.compute_integral_of_landscape(); + cout << "integral : " << integral <<endl; + + //compute integral for each level separatelly + for ( size_t level = 0 ; level != p.size() ; ++level ) + { + cout << p.compute_integral_of_landscape( level ) << endl; + } + + //compute integral of p-th power of landscspe + for ( size_t power = 0 ; power != 5 ; ++power ) + { + cout << p.compute_integral_of_landscape( power ) << endl; + } + + cout << "Value of level 1 at 0 : " << p.compute_value_at_a_given_point(1,0.0) << endl; + cout << "Value of level 1 at 1 : " << p.compute_value_at_a_given_point(1,0.1) << endl; + cout << "Value of level 1 at 2 : " << p.compute_value_at_a_given_point(1,0.2) << endl; + cout << "Value of level 1 at 3 : " << p.compute_value_at_a_given_point(1,0.3) << endl; + + + cout << "Value of level 2 at 0 : " << p.compute_value_at_a_given_point(2,0.0) << endl; + cout << "Value of level 2 at 1 : " << p.compute_value_at_a_given_point(2,0.1) << endl; + cout << "Value of level 2 at 2 : " << p.compute_value_at_a_given_point(2,0.2) << endl; + cout << "Value of level 2 at 3 : " << p.compute_value_at_a_given_point(2,0.3) << endl; + + + cout << "Value of level 3 at 0 : " << p.compute_value_at_a_given_point(3,0.0) << endl; + cout << "Value of level 3 at 1 : " << p.compute_value_at_a_given_point(3,0.1) << endl; + cout << "Value of level 3 at 2 : " << p.compute_value_at_a_given_point(3,0.2) << endl; + cout << "Value of level 3 at 3 : " << p.compute_value_at_a_given_point(3,0.3) << endl; + + + + Persistence_landscape second; + second.load_landscape_from_file("file_with_landscape_from_file_with_diagram_1" ); + + Persistence_landscape sum = p + second; + Persistence_landscape difference = p - second; + Persistence_landscape multiply_by_scalar = 10*p; + + //sum.print_to_file("sum"); + //difference.print_to_file("difference"); + //multiply_by_scalar.print_to_file("multiply_by_scalar"); + + Persistence_landscape template_sum; + template_sum.load_landscape_from_file( "sum" ); + Persistence_landscape template_difference; + template_difference.load_landscape_from_file( "difference" ); + Persistence_landscape template_multiply_by_scalar; + template_multiply_by_scalar.load_landscape_from_file( "multiply_by_scalar" ); + + if ( sum != template_sum ) + { + cerr << "Problem with sums \n"; + } + if ( difference != template_difference ) + { + cerr << "Problem with differences \n"; + } + if ( multiply_by_scalar != template_multiply_by_scalar ) + { + cerr << "Problem with multiplication by scalar \n"; + } + + + + cout << "Maximum : " << p.compute_maximum() << endl; + + cout << "L^1 norm : " << p.compute_norm_of_landscape(1) << endl; + cout << "L^2 norm : " << p.compute_norm_of_landscape(2) << endl; + cout << "L^3 norm : " << p.compute_norm_of_landscape(3) << endl; + + + cout << "L^1 distance : " << compute_distance_of_landscapes(p,sum,1) << endl; + cout << "L^2 distance : " << compute_distance_of_landscapes(p,sum,2) << endl; + cout << "L^infty distance : " << compute_distance_of_landscapes(p,sum,std::numeric_limits<double>::max() ) << +endl; + + { + Persistence_landscape p( "data/file_with_diagram" ); + Persistence_landscape q( "data/file_with_diagram_1" ); + Persistence_landscape av; + av.compute_average( {&p,&q} ); + + Persistence_landscape template_average; + template_average.load_landscape_from_file( "average" ); + if ( template_average != av ) + { + cerr << "We have a problem with average \n"; + } + } + + + { + Persistence_landscape p( "data/file_with_diagram" ); + Persistence_landscape q( "data/file_with_diagram_1" ); + cout << "L^1 distance : " << p.distance( &q ) << endl; + cout << "L^2 distance : " << p.distance( &q , 2) << endl; + cout << "L^infty distance : " << p.distance( &q , std::numeric_limits<double>::max() ) << endl; + } + + + { + Persistence_landscape p( "data/file_with_diagram" ); + Persistence_landscape q( "data/file_with_diagram_1" ); + cout << "Scalar product : " << p.compute_scalar_product( &q ) << endl; + } +*/ |