{ "_id": "6a1c37921d7bb097a0a2fb8c", "Package": "optimflex", "Type": "Package", "Title": "Derivative-Based Optimization with User-Defined Convergence\nCriteria", "Version": "0.1.7", "Authors@R": "person(\"Eunseong\", \"Cho\",\nemail = \"bene@kw.ac.kr\",\nrole = c(\"aut\", \"cre\"))", "Description": "Provides a derivative-based optimization framework that\nallows users to combine eight convergence criteria. Unlike\nstandard optimization functions, this package includes a\nbuilt-in mechanism to verify the positive definiteness of the\nHessian matrix at the point of convergence. This additional\ncheck helps prevent the solver from falsely identifying\nnon-optimal solutions, such as saddle points, as valid minima.", "License": "MIT + file LICENSE", "Encoding": "UTF-8", "RoxygenNote": "7.3.3", "Config/testthat/edition": "3", "VignetteBuilder": "knitr", "URL": "https://github.com/eunscho/optimflex", "BugReports": "https://github.com/eunscho/optimflex/issues", "Repository": "https://eunscho.r-universe.dev", "Date/Publication": "2026-05-31 12:08:54 UTC", "RemoteUrl": "https://github.com/eunscho/optimflex", "RemoteRef": "HEAD", "RemoteSha": "7e5afbb62b0780d1956b489aef4980910689744a", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-31 13:26:17 UTC", "User": "root" }, "Author": "Eunseong Cho [aut, cre]", "Maintainer": "Eunseong Cho ", "MD5sum": "71be45369f3c1dbd864dd1bf35d057f9", "_user": "eunscho", "_type": "src", "_file": "optimflex_0.1.7.tar.gz", "_fileid": "a25d56b0e866edbd66ccf011eb75b20ce0bccd549209c9b43cda9cc40245762b", "_filesize": 210334, "_sha256": "a25d56b0e866edbd66ccf011eb75b20ce0bccd549209c9b43cda9cc40245762b", "_created": "2026-05-31T13:26:17.000Z", "_published": "2026-05-31T13:28:50.284Z", "_distro": "noble", "_jobs": [ { "job": 78728904824, "time": 107, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7317095181" }, { "job": 78728904823, "time": 118, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7317096424" }, { "job": 78728904831, "time": 124, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7317096963" }, { "job": 78728904834, "time": 74, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7317092041" }, { "job": 78728740786, "time": 168, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7317084634" }, { "job": 78728904820, "time": 98, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7317094263" }, { "job": 78728904826, "time": 83, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7317092833" }, { "job": 78728904839, "time": 64, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7317090997" }, { "job": 78728904837, "time": 64, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7317091081" } ], "_buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/eunscho/optimflex", "_commit": { "id": "7e5afbb62b0780d1956b489aef4980910689744a", "author": "eunscho ", "committer": "eunscho ", "message": "fix: evaluate exact Hessian at x_try instead of x in dogleg and double_dogleg\n", "time": 1780229334 }, "_maintainer": { "name": "Eunseong Cho", "email": "bene@kw.ac.kr", "login": "eunscho", "description": "", "uuid": 46369547 }, "_registered": true, "_dependencies": [ { "package": "numDeriv", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" } ], "_owner": "eunscho", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2026-06", "n": 3 }, { "week": "2026-22", "n": 5 } ], "_tags": [], "_stars": 1, "_contributors": [ { "user": "eunscho", "count": 8, "uuid": 46369547 } ], "_userbio": { "uuid": 46369547, "type": "user", "name": "eunscho" }, "_downloads": { "count": 471, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/optimflex" }, "_devurl": "https://github.com/eunscho/optimflex", "_searchresults": 0, "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/NEWS.html", "extra/NEWS.txt", "extra/optimflex.html", "extra/readme.html", "extra/readme.md", "manual.pdf" ], "_homeurl": "https://github.com/eunscho/optimflex", "_realowner": "eunscho", "_cranurl": true, "_releases": [ { "version": "0.1.0", "date": "2026-02-07" }, { "version": "0.1.6", "date": "2026-04-11" }, { "version": "0.1.7", "date": "2026-05-31" } ], "_exports": [ "bfgs", "dogleg", "double_dogleg", "fast_grad", "fast_hess", "fast_jac", "gauss_newton", "is_pd_fast", "l_bfgs_b", "modified_newton", "newton_raphson" ], "_help": [ { "page": "bfgs", "title": "Broyden-Fletcher-Goldfarb-Shanno (BFGS) Optimization", "topics": [ "bfgs" ] }, { "page": "dogleg", "title": "Dogleg Trust-Region Optimization", "topics": [ "dogleg" ] }, { "page": "double_dogleg", "title": "Double Dogleg Trust-Region Optimization", "topics": [ "double_dogleg" ] }, { "page": "fast_grad", "title": "Fast Numerical Gradient", "topics": [ "fast_grad" ] }, { "page": "fast_hess", "title": "Fast Numerical Hessian", "topics": [ "fast_hess" ] }, { "page": "fast_jac", "title": "Fast Numerical Jacobian", "topics": [ "fast_jac" ] }, { "page": "gauss_newton", "title": "Gauss-Newton Optimization", "topics": [ "gauss_newton" ] }, { "page": "is_pd_fast", "title": "Fast Positive Definiteness Check", "topics": [ "is_pd_fast" ] }, { "page": "l_bfgs_b", "title": "Limited-memory BFGS with Box Constraints (L-BFGS-B)", "topics": [ "l_bfgs_b" ] }, { "page": "modified_newton", "title": "Modified Newton-Raphson Optimization", "topics": [ "modified_newton" ] }, { "page": "newton_raphson", "title": "Pure Newton-Raphson Optimization", "topics": [ "newton_raphson" ] } ], "_readme": "https://github.com/eunscho/optimflex/raw/HEAD/README.md", "_rundeps": [ "numDeriv" ], "_vignettes": [ { "source": "Introduction-to-optimflex.Rmd", "filename": "Introduction-to-optimflex.html", "title": "Introduction to optimflex", "engine": "knitr::rmarkdown", "headings": [ "Introduction", "Rigorous Convergence Control", "Convergence Criteria and Formulas", "1. Function Value Changes", "2. Parameter Space Changes", "3. Gradient Norm", "4. Hessian Verification", "5. Model-based Predicted Decrease", "Basic Usage", "Algorithm Comparison: The Rosenbrock Function" ], "created": "2026-02-08 05:38:31", "modified": "2026-05-31 05:11:26", "commits": 2 } ], "_score": 4, "_indexed": true, "_nocasepkg": "optimflex", "_universes": [ "eunscho" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "0.1.7", "date": "2026-05-31T13:28:04.000Z", "distro": "noble", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "9c4e13e280f034ae12649e5710fe6a88be6a314a0dfa322cd7af167f35fdf02f", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" }, { "r": "4.6.0", "os": "linux", "version": "0.1.7", "date": "2026-05-31T13:28:16.000Z", "distro": "noble", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "d8b7a3d3e1b75a811d768c54fa4dabbfe524b23e137b2c6155f6b3ffdbe4b761", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" }, { "r": "4.5.3", "os": "mac", "version": "0.1.7", "date": "2026-05-31T13:28:22.000Z", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "53cfd837a1d35ea060c9080b255475b4a50efeed2bb1be972f0ad584eb228cb8", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" }, { "r": "4.6.0", "os": "mac", "version": "0.1.7", "date": "2026-05-31T13:27:37.000Z", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "ed940e8b4b3786eea85e3754ce066e7dbbb27b820ccbcd9ceb67e75c16aa65d9", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" }, { "r": "4.6.0", "os": "wasm", "version": "0.1.7", "date": "2026-05-31T13:28:09.000Z", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "9258d0c9aed2ec37a2955ab698a52ffa6f17748ab3b5e7c2753dadb45596d5bb", "status": "success", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" }, { "r": "4.7.0", "os": "win", "version": "0.1.7", "date": "2026-05-31T13:27:36.000Z", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "693db3525f4d226f62eb4b86effdf02a28b1fbd60177f85aa2431c7c3c4ccda6", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" }, { "r": "4.5.3", "os": "win", "version": "0.1.7", "date": "2026-05-31T13:27:18.000Z", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "e52fe22e7da0ee51dd9b800072681c8c2b037a8a8822af757032c38cd4ab1862", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" }, { "r": "4.6.0", "os": "win", "version": "0.1.7", "date": "2026-05-31T13:27:18.000Z", "commit": "7e5afbb62b0780d1956b489aef4980910689744a", "fileid": "15f694744ce1ee827cde3002a9ee1eecfc86d241239a2342fb5b4356866f2ead", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/eunscho/actions/runs/26713818528" } ] }