{ "_id": "6a12c648acfb0bcc41d1ff0b", "Package": "kofn", "Title": "Maximum Likelihood Estimation for k-out-of-n System Data", "Version": "0.4.0", "Authors@R": "person(\"Alexander\", \"Towell\",\nemail = \"lex@metafunctor.com\",\nrole = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0001-6443-9897\"))", "Description": "Maximum likelihood estimation of component lifetime\nparameters from system-level observations of k-out-of-n\nsystems. Supports exponential and Weibull component\ndistributions under multiple observation schemes: Scheme 0\n(system lifetime only), Scheme 1 (periodic inspection), and\nScheme 2 (complete monitoring). Provides an EM algorithm for\nWeibull parallel systems and Fisher information comparison\nacross schemes. The k-out-of-n framework unifies series (k=1)\nand parallel (k=m) systems as a censoring problem on component\nlifetimes. Conforms to the 'likelihood.model' generics and\nreturns fitted objects compatible with 'algebraic.mle'. The\ndata-generating process and topology infrastructure (system\nsurvival, density, signature, structure function, importance\nmeasures) are delegated to the 'dist.structure' package; kofn\nfocuses exclusively on inference for the k-out-of-n family.", "License": "MIT + file LICENSE", "URL": "https://github.com/queelius/kofn, https://queelius.github.io/kofn/", "BugReports": "https://github.com/queelius/kofn/issues", "Config/testthat/edition": "3", "Encoding": "UTF-8", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.3.3", "VignetteBuilder": "knitr", "Repository": "https://queelius.r-universe.dev", "Date/Publication": "2026-05-23 06:18:38 UTC", "RemoteUrl": "https://github.com/queelius/kofn", "RemoteRef": "HEAD", "RemoteSha": "a84d8f62f572011075fbc534c79b900743485941", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-24 09:31:25 UTC", "User": "root" }, "Author": "Alexander Towell [aut, cre] (ORCID:\n)", "Maintainer": "Alexander Towell ", "MD5sum": "f3569702de5041e744440fb7805dff3d", "_user": "queelius", "_type": "src", "_file": "kofn_0.4.0.tar.gz", "_fileid": "da4ff6094072ce1448856818a4b25f840aac1003dce592ff3ba3baa9011b93ee", "_filesize": 1318291, "_sha256": "da4ff6094072ce1448856818a4b25f840aac1003dce592ff3ba3baa9011b93ee", "_created": "2026-05-24T09:31:25.000Z", "_published": "2026-05-24T09:35:04.246Z", "_distro": "noble", "_jobs": [ { "job": 77587226891, "time": 178, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "NOTE", "artifact": "7184062222" }, { "job": 77587226942, "time": 176, "config": "linux-release-x86_64", "r": "4.6.0", "check": "NOTE", "artifact": "7184062030" }, { "job": 77587226895, "time": 98, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "NOTE", "artifact": "7184054410" }, { "job": 77587226926, "time": 94, "config": "macos-release-arm64", "r": "4.6.0", "check": "NOTE", "artifact": "7184053989" }, { "job": 77586914094, "time": 342, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7184044760" }, { "job": 77587226893, "time": 96, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7184054191" }, { "job": 77587226912, "time": 139, "config": "windows-devel", "r": "4.7.0", "check": "NOTE", "artifact": "7184058205" }, { "job": 77587226909, "time": 143, "config": "windows-oldrel", "r": "4.5.3", "check": "NOTE", "artifact": "7184058539" }, { "job": 77587226907, "time": 137, "config": "windows-release", "r": "4.6.0", "check": "NOTE", "artifact": "7184058056" } ], "_buildurl": "https://github.com/r-universe/queelius/actions/runs/26357527465", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/queelius/kofn", "_commit": { "id": "a84d8f62f572011075fbc534c79b900743485941", "author": "Alex Towell ", "committer": "Alex Towell ", "message": "kofn 0.4.0: CRAN-ready cleanup (vignette runtime, S3 signature, re-exports)\n\nVignette runtime now ~5 min total (was ~25 min):\n* weibull-em.Rmd: 4 unconditional fits drop from n=300 -> n=50\n* periodic-inspection.Rmd: drop n=300 -> n=100 for two-component\n fits, n=150 -> n=50 for the four-component k-spectrum loop, and\n n_starts=3/2 -> 1 on all unconditional chunks.\n* observation-schemes.Rmd: scheme-comparison loop drops R=5 to R=3\n and n=200 to n=60, plus n_starts=3 -> 1.\n* exponential-parallel.Rmd: n=100 -> n=50 on unconditional demos,\n Monte Carlo R=5 -> 3, n_starts=5/3 -> 1.\n* ecosystem.Rmd: n=300 -> n=100 for both fits, n_starts=3 -> 1.\n* dist-structure-integration.Rmd: n=500 -> n=100, n_starts=3 -> 1.\n* getting-started.Rmd: n=300/200 -> n=100, n_starts=3 -> 1.\n* The gated run_long chunks keep n=300 and n_starts=3 for the\n scientific results; only the always-run demo chunks shrank.\n\nR CMD check fixes:\n* R/kofn.R: rename `ncomponents.kofn(model, ...)` -> `(x, ...)` to\n match the generic signature in dist.structure. Resolves the S3\n generic/method consistency WARNING.\n* R/reexports.R: re-export `dfr_exponential` and `dfr_weibull` from\n flexhaz, and `ncomponents` from dist.structure. Users (and vignettes\n and examples) can now call these unqualified after library(kofn).\n* R/scheme1.R: add @importFrom stats density to loglik_scheme1 so\n the bare density() call inside the loglik closure resolves cleanly.\n Eliminates the \"no visible global function\" NOTE.\n* DESCRIPTION: pin flexhaz (>= 0.5.2), which introduces the\n family-specific S3 subclass on prototype constructors that\n kofn_subclass() relies on. flexhaz 0.5.2 is currently in CRAN review.\n* .Rbuildignore: add _pkgdown.yml, cran-comments.md, CRAN-SUBMISSION,\n .papermill.md. Resolves the \"non-standard file at top level\" NOTE.\n\nStatus: 0 errors, 0 warnings, 1 NOTE (the benign \"unable to verify\ncurrent time\" timestamp). Tests pass; on CRAN the stress tests\n(test-stress.R, test-stress2.R) skip via skip_on_", "time": 1779517118 }, "_maintainer": { "name": "Alexander Towell", "email": "lex@metafunctor.com", "login": "queelius", "orcid": "0000-0001-6443-9897", "twitter": "@queelius", "description": "Alexander Towell (Alex Towell). Reliability theory, encrypted search, algebraic structures. Building personal data tools.", "uuid": 1896674 }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 4.1.0", "role": "Depends" }, { "package": "stats", "role": "Imports" }, { "package": "numDeriv", "role": "Imports" }, { "package": "likelihood.model", "role": "Imports" }, { "package": "compositional.mle", "role": "Imports" }, { "package": "generics", "role": "Imports" }, { "package": "dist.structure", "role": "Imports" }, { "package": "algebraic.dist", "role": "Imports" }, { "package": "flexhaz", "version": ">= 0.5.2", "role": "Imports" }, { "package": "algebraic.mle", "role": "Suggests" }, { "package": "maskedcauses", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" } ], "_owner": "queelius", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2026-11", "n": 8 }, { "week": "2026-12", "n": 9 }, { "week": "2026-13", "n": 16 }, { "week": "2026-14", "n": 11 }, { "week": "2026-16", "n": 6 }, { "week": "2026-20", "n": 1 }, { "week": "2026-21", "n": 1 } ], "_tags": [ { "name": "v0.2.0", "date": "2026-03-14" } ], "_stars": 0, "_contributors": [ { "user": "queelius", "count": 52, "uuid": 1896674 } ], "_userbio": { "uuid": 1896674, "type": "user", "name": "Alex Towell", "description": "Alexander Towell (Alex Towell). Reliability theory, encrypted search, algebraic structures. 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