diff options
Diffstat (limited to 'src/Gudhi_stat/utilities/Multiplicative_bootstrap.cpp')
| -rw-r--r-- | src/Gudhi_stat/utilities/Multiplicative_bootstrap.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/Gudhi_stat/utilities/Multiplicative_bootstrap.cpp b/src/Gudhi_stat/utilities/Multiplicative_bootstrap.cpp new file mode 100644 index 00000000..9a607251 --- /dev/null +++ b/src/Gudhi_stat/utilities/Multiplicative_bootstrap.cpp @@ -0,0 +1,69 @@ +/* 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/>. + */ + + +#include <gudhi/Hausdorff_distances.h> +#include <gudhi/multiplicative_bootstrap.h> +#include <gudhi/read_persitence_from_file.h> +#include <gudhi/persistence_representations/Vector_distances_in_diagram.h> + +using namespace Gudhi; +using namespace Gudhi::Gudhi_stat; + + + +int main( int argc , char** argv ) +{ + std::cout << "The parameters of this program are : " << std::endl; + std::cout << "(a) a name of a file with names of files with persistence diagrams," << std:: endl; + std::cout << "(b) a number of repetitions of bootstrap (integer)," << std::endl; + std::cout << "(c) a quantile (real number between 0 and 1. If you do not know what to set, set it to 0.95." << std::endl; + if ( argc != 4 ) + { + std::cerr << "Wrong number of parameters, the program will now terminate.\n"; + return 1; + } + + const char* file_with_filenames = argv[1]; + size_t number_of_repetitions_of_bootstrap = (size_t)atoi( argv[2] ); + double quantile = atof( argv[3] ); + + std::vector< std::string > filenames = readFileNames( file_with_filenames ); + std::vector< Persistence_landscape* > collection_of_landscapes( filenames.size() ); + for ( size_t i = 0 ; i != filenames.size() ; ++i ) + { + std::vector< std::pair< double , double > > diag = read_gudhi_file( filenames[i].c_str() , 1 );//read_standard_file( filenames[i].c_str() ); + collection_of_landscapes[i] = new Persistence_landscape( diag ); + } + + //now we can run the bootstrap: + difference_of_objects<Persistence_landscape> diff; + norm_of_objects<Persistence_landscape> norm; + + double result = + multiplicative_bootstrap< Persistence_landscape , difference_of_objects<Persistence_landscape> , norm_of_objects<Persistence_landscape> > + ( collection_of_landscapes , number_of_repetitions_of_bootstrap , diff , norm , quantile , 1 ); + + std::cout << "result of bootstrap : " << result << std::endl; + return 0; +} + |