{ "_id": "6ac77850de46216d5edd0635", "Package": "GammaFrailtySPC", "Type": "Package", "Title": "Statistical Process Control Based on Gamma-Frailty AFT Models", "Version": "0.1.0", "Authors@R": "c(\nperson(\"Shikhar\", \"Tyagi\",\nemail = \"shikhar1093tyagi@gmail.com\",\nrole = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0003-1606-0844\")),\nperson(\"Arvind\", \"Pandey\",\nemail = \"arvindmzu@gmail.com\",\nrole = \"aut\"),\nperson(\"Bhupendra\", \"Singh\",\nemail = \"bhupendra.rana@gmail.com\",\nrole = \"aut\"),\nperson(\"Vrijesh\", \"Tripathi\",\nemail = \"vrijesh.tripathi@uwi.edu\",\nrole = \"aut\"))", "Description": "Implements statistical process control ('SPC') monitoring\nschemes for heterogeneous reliability observations using\nAccelerated Failure Time ('AFT') models integrated with\ncontinuous gamma frailty. It accommodates both uncensored and\nright-censored reliability observations in the presence of\nobserved and unobserved covariates. Provides Phase I maximum\nlikelihood estimation of Weibull 'AFT' gamma frailty model\nparameters, and Phase II monitoring procedures including\nprobability-limits-based control charts, exponentially weighted\nmoving average ('EWMA') charts with conditional expected\nvalues, and likelihood-ratio cumulative sum ('CUSUM') control\ncharts. Competing 'CUSUM' schemes (ignoring unobserved frailty\nor both covariates) and Average Run Length ('ARL') simulation\nutilities are also provided. The statistical methodology is\nbased on Asadzadeh (2022) .", "License": "GPL-3", "Config/testthat/edition": "3", "Encoding": "UTF-8", "Language": "en-US", "LazyData": "true", "RoxygenNote": "7.3.3", "VignetteBuilder": "knitr", "NeedsCompilation": "no", "Packaged": { "Date": "2026-10-08 10:12:43 UTC", "User": "root" }, "Author": "Shikhar Tyagi [aut, cre] (ORCID:\n), Arvind Pandey [aut],\nBhupendra Singh [aut], Vrijesh Tripathi [aut]", "Maintainer": "Shikhar Tyagi ", "Repository": "https://shikhartyagi.r-universe.dev", "Date/Publication": "2026-08-08 13:50:16 UTC", "RemoteUrl": "https://github.com/cran/GammaFrailtySPC", "RemoteRef": "HEAD", "RemoteSha": "efd4c34e5c4bc68dc86d16296640810518aae0fa", "_user": "shikhartyagi", "_type": "src", "_file": "GammaFrailtySPC_0.1.0.tar.gz", "_fileid": "https://r2.ropensci.org/cc09f580a27fcaa7ee70bfb4cad6693bc5f74f41a14bb0a26940c63de6755aa5", "_filesize": 330000, "_sha256": "cc09f580a27fcaa7ee70bfb4cad6693bc5f74f41a14bb0a26940c63de6755aa5", "_expires": "2027-01-16T11:02:38.000Z", "_created": "2026-10-08T10:12:43.000Z", "_published": "2026-10-08T11:02:40.437Z", "_buildurl": "https://github.com/r-universe/shikhartyagi/actions/runs/37761657831", "_status": "success", "_host": "GitHub-Actions", "_jobs": [ { "job": 113260430522, "time": 120, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "11542632479" }, { "job": 113260430501, "time": 117, "config": "linux-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "11542991482" }, { "job": 113260430802, "time": 133, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "11545235935" }, { "job": 113260430404, "time": 97, "config": "macos-release-arm64", "r": "4.6.1", "check": "OK", "artifact": "11545210699" }, { "job": 113259407198, "time": 160, "config": "source", "r": "4.6.1", "check": "OK", "artifact": "11542607488" }, { "job": 113260430534, "time": 85, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "11543225322" }, { "job": 113260430610, "time": 92, "config": "windows-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "11542527918" }, { "job": 113260430482, "time": 74, "config": "windows-oldrel-x86_64", "r": "4.5.3", "check": "OK", "artifact": "11543245339" }, { "job": 113260430474, "time": 90, "config": "windows-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "11542752397" } ], "_upstream": "https://github.com/cran/GammaFrailtySPC", "_commit": { "id": "efd4c34e5c4bc68dc86d16296640810518aae0fa", "author": "Shikhar Tyagi ", "committer": "cran-robot ", "message": "version 0.1.0\n", "time": 1786197016 }, "_maintainer": { "name": "Shikhar Tyagi", "email": "shikhar1093tyagi@gmail.com", "login": "shikhartyagi", "description": "Lecturer, Department of Mathematics and Statistics, The University of the West Indies, Trinidad and Tobago. 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