{"id":16475938,"url":"https://github.com/alugowski/fast_matrix_market","last_synced_at":"2025-10-12T19:41:22.346Z","repository":{"id":65343235,"uuid":"587183505","full_name":"alugowski/fast_matrix_market","owner":"alugowski","description":"Fast and full-featured Matrix Market I/O library for C++, Python, and R","archived":false,"fork":false,"pushed_at":"2024-08-05T11:23:50.000Z","size":884,"stargazers_count":82,"open_issues_count":8,"forks_count":9,"subscribers_count":5,"default_branch":"main","last_synced_at":"2025-09-05T08:54:09.179Z","etag":null,"topics":["blaze","cpp","csparse","eigen-library","eigen3","graphblas","matrix-market","matrix-market-format","parallel","parser","python","r","sparse-matrix","threaded"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-2-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/alugowski.png","metadata":{"files":{"readme":"README.Armadillo.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.txt","code_of_conduct":null,"threat_model":null,"audit":null,"citation":"CITATION.cff","codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2023-01-10T06:38:53.000Z","updated_at":"2025-09-03T09:42:10.000Z","dependencies_parsed_at":"2023-09-26T01:39:35.147Z","dependency_job_id":"92ab073b-8f86-4401-9a5d-f308404bc114","html_url":"https://github.com/alugowski/fast_matrix_market","commit_stats":{"total_commits":282,"total_committers":4,"mean_commits":70.5,"dds":0.01773049645390068,"last_synced_commit":"b8e3403fd86c48b8ceef64aa6fd01da6cf9cbe3b"},"previous_names":[],"tags_count":21,"template":false,"template_full_name":null,"purl":"pkg:github/alugowski/fast_matrix_market","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alugowski%2Ffast_matrix_market","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alugowski%2Ffast_matrix_market/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alugowski%2Ffast_matrix_market/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alugowski%2Ffast_matrix_market/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/alugowski","download_url":"https://codeload.github.com/alugowski/fast_matrix_market/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/alugowski%2Ffast_matrix_market/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":279012673,"owners_count":26085159,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-12T02:00:06.719Z","response_time":53,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["blaze","cpp","csparse","eigen-library","eigen3","graphblas","matrix-market","matrix-market-format","parallel","parser","python","r","sparse-matrix","threaded"],"created_at":"2024-10-11T12:40:53.685Z","updated_at":"2025-10-12T19:41:22.302Z","avatar_url":"https://github.com/alugowski.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Armadillo Matrix Market\n\n`fast_matrix_market` provides read/write methods for [Armadillo](https://arma.sourceforge.net/) sparse and dense matrices.\n\n# Usage\n\n```c++\n#include \u003cfast_matrix_market/app/Armadillo.hpp\u003e\n```\n\n```c++\narma::Mat\u003cdouble\u003e A;\n// or\narma::SpMat\u003cdouble\u003e A;\n```\n\nNot restricted to `double` matrices. Any type supported by Armadillo that makes sense in Matrix Market is also supported, such as `int64_t`, `float`, `std::complex\u003cdouble\u003e`, etc.\n\n### Reading\n```c++\nstd::ifstream f(\"input.mtx\");\n\nfast_matrix_market::read_matrix_market_arma(f, A);\n```\n\n**Note:** Armadillo versions older than 10.5 [did not zero-initialize memory](https://arma.sourceforge.net/docs.html#changelog).\nOn those versions reading any Matrix Market file into a dense `arma::Mat` is not supported.\n\n\n### Writing\n\n```c++\nstd::ofstream f(\"output.mtx\", std::ios_base::binary);\n\nfast_matrix_market::write_matrix_market_arma(f, A);\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falugowski%2Ffast_matrix_market","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Falugowski%2Ffast_matrix_market","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falugowski%2Ffast_matrix_market/lists"}