diff options
Diffstat (limited to 'src/Gudhi_stat/test/persistence_lanscapes_test.cpp')
| -rw-r--r-- | src/Gudhi_stat/test/persistence_lanscapes_test.cpp | 384 |
1 files changed, 384 insertions, 0 deletions
diff --git a/src/Gudhi_stat/test/persistence_lanscapes_test.cpp b/src/Gudhi_stat/test/persistence_lanscapes_test.cpp new file mode 100644 index 00000000..c1e24b1c --- /dev/null +++ b/src/Gudhi_stat/test/persistence_lanscapes_test.cpp @@ -0,0 +1,384 @@ +/* This file is part of the Gudhi Library. The Gudhi library + * (Geometric Understanding in Higher Dimensions) is a generic C++ + * library for computational topology. + * + * Author(s): Pawel Dlotko + * + * Copyright (C) 2015 INRIA (France) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + + + +#define BOOST_TEST_DYN_LINK +#define BOOST_TEST_MODULE "Persistence_representations" +#include <boost/test/unit_test.hpp> +#include <gudhi/reader_utils.h> +#include <gudhi/Persistence_landscape.h> + +#include <iostream> +#include <limits> + + + +using namespace Gudhi; +using namespace Gudhi::Persistence_representations; + + +double epsilon = 0.0000005; + + + + +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 ); + double integral = p.compute_integral_of_landscape(); + //cerr << integral << " " << 2.34992 << endl; + BOOST_CHECK( fabs( integral - 2.34992 ) <= 0.00001 ); +} + + +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_fir_different_levels; + integrals_fir_different_levels.push_back( 0.216432 ); + integrals_fir_different_levels.push_back( 0.204763 ); + integrals_fir_different_levels.push_back( 0.188793 ); + integrals_fir_different_levels.push_back( 0.178856 ); + integrals_fir_different_levels.push_back( 0.163142 ); + integrals_fir_different_levels.push_back( 0.155015 ); + integrals_fir_different_levels.push_back( 0.143046 ); + integrals_fir_different_levels.push_back( 0.133765 ); + integrals_fir_different_levels.push_back( 0.123531 ); + integrals_fir_different_levels.push_back( 0.117393 ); + integrals_fir_different_levels.push_back( 0.111269 ); + integrals_fir_different_levels.push_back( 0.104283 ); + integrals_fir_different_levels.push_back( 0.0941308 ); + integrals_fir_different_levels.push_back( 0.0811208 ); + integrals_fir_different_levels.push_back( 0.0679001 ); + integrals_fir_different_levels.push_back( 0.0580801 ); + integrals_fir_different_levels.push_back( 0.0489647 ); + integrals_fir_different_levels.push_back( 0.0407936 ); + integrals_fir_different_levels.push_back( 0.0342599 ); + integrals_fir_different_levels.push_back( 0.02896 ); + integrals_fir_different_levels.push_back( 0.0239881 ); + integrals_fir_different_levels.push_back( 0.0171792 ); + integrals_fir_different_levels.push_back( 0.0071511 ); + integrals_fir_different_levels.push_back( 0.00462067 ); + integrals_fir_different_levels.push_back( 0.00229033 ); + integrals_fir_different_levels.push_back( 0.000195296 ); + + + + + for ( size_t level = 0 ; level != p.size() ; ++level ) + { + double integral = p.compute_integral_of_a_level_of_a_landscape( level ); + BOOST_CHECK( fabs( integral - integrals_fir_different_levels[level] ) <= 0.00001 ); + } + +} + +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_fir_different_powers; + integrals_fir_different_powers.push_back( 17.1692 ); + integrals_fir_different_powers.push_back( 2.34992 ); + integrals_fir_different_powers.push_back( 0.49857 ); + integrals_fir_different_powers.push_back( 0.126405 ); + integrals_fir_different_powers.push_back( 0.0355235 ); + + for ( size_t power = 0 ; power != 5 ; ++power ) + { + double integral = p.compute_integral_of_landscape( (double)power ); + BOOST_CHECK( fabs( integral - integrals_fir_different_powers[power] ) <= 0.00005 ); + } +} + +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 ); + + + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(1,0.0) ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(1,0.1) - 0.0692324 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(1,0.2) - 0.163369 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(1,0.3) - 0.217115 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(2,0.0) ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(2,0.1) - 0.0633688 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(2,0.2) - 0.122361 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(2,0.3) - 0.195401 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(3,0.0) ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(3,0.1) - 0.0455386 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(3,0.2) - 0.0954012 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_value_at_a_given_point(3,0.3) - 0.185282 ) <= 0.00001 ); +} + + +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; + + BOOST_CHECK( fabs( p.compute_maximum() - 0.431313 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_norm_of_landscape(1) - 2.34992 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_norm_of_landscape(2) - 0.706095 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.compute_norm_of_landscape(3) - 0.501867 ) <= 0.00001 ); + BOOST_CHECK( fabs( compute_distance_of_landscapes(p,sum,1) - 27.9323 ) <= 0.00005 ); + BOOST_CHECK( fabs( compute_distance_of_landscapes(p,sum,2) - 2.35199 ) <= 0.00001 ); + BOOST_CHECK( fabs(compute_distance_of_landscapes( p , sum , std::numeric_limits<double>::max() ) - 0.464478 ) <= 0.00001 ); +} + + +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() ); + + BOOST_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 ); + BOOST_CHECK( fabs( p.distance( q )- 25.5824) <= 0.00005 ); + BOOST_CHECK( fabs( p.distance( q , 2) - 2.12636 ) <= 0.00001 ); + BOOST_CHECK( fabs( p.distance( q , std::numeric_limits<double>::max() )-0.359068 ) <= 0.00001 ); + std::cerr << "p.distance( q , std::numeric_limits<double>::max() ) : " << p.distance( q , std::numeric_limits<double>::max() ) << std::endl; +} + + +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 ); + BOOST_CHECK( fabs( p.compute_scalar_product( q ) - 0.754498 ) <= 0.00001 ); +} + + + +//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("../test/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( "../test/data/file_with_diagram" ); + Persistence_landscape q( "../test/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( "../test/data/file_with_diagram" ); + Persistence_landscape q( "../test/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( "../test/data/file_with_diagram" ); + Persistence_landscape q( "../test/data/file_with_diagram_1" ); + cout << "Scalar product : " << p.compute_scalar_product( &q ) << endl; + } +*/ |