{ "_id": "6ab119843d719c1f840870ef", "Package": "MultiFrailty", "Title": "Shared Frailty Regression Models with Inverse Gaussian,\nGeneralized Lindley, and Gamma Frailty Distributions", "Version": "0.1.0", "Authors@R": "c(\nperson(\"Shikhar\", \"Tyagi\", email = \"shikhar1093tyagi@gmail.com\",\nrole = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0003-1606-0844\")),\nperson(\"Arvind\", \"Pandey\", email = \"arvindmzu@gmail.com\", role = \"aut\"),\nperson(\"Bhupendra\", \"Singh\", email = \"bhupendra.rana@gmail.com\", role = \"aut\"),\nperson(\"Vrijesh\", \"Tripathi\", email = \"vrijesh.tripathi@uwi.edu\", role = \"aut\"))", "Description": "Implements shared frailty regression models for survival\ndata under eight censoring mechanisms: exact, right censoring\n(Kalbfleisch and Prentice, 2002), left censoring, interval\ncensoring (Sun, 2006), progressive Type I censoring, and\nprogressive Type II censoring (Balakrishnan and Aggarwala, 2000\n). Combines four frailty\ndistributions -- Gamma (Clayton, 1978), Inverse Gaussian\n(Hougaard, 1984), and two variants of the Generalized Lindley\n(GL) distribution: GL Type 1, a two-component gamma mixture\nwith distribution-specific scale/shape linkage (Pandey,\nHanagal, and Tyagi, 2022), and GL Type 2, a two-component gamma\nmixture with a common rate parameter (Pandey and Tyagi, 2021\n) -- with two baseline hazard\ndistributions: the two-parameter Weibull distribution (Weibull,\n1951) and the three-parameter Generalized (Exponentiated)\nWeibull distribution (Mudholkar and Srivastava, 1993\n). A no-frailty baseline-only model is\nalso supported for nested model comparison. Maximum likelihood\nestimation is conducted using Newton-Raphson and\nBroyden-Fletcher-Goldfarb-Shanno (BFGS) algorithms via the\n'maxLik' package (Henningsen and Toomet, 2011\n). Provides standard errors,\nconfidence intervals, hypothesis tests, Akaike Information\nCriterion (AIC, Akaike, 1974 ),\nBayesian Information Criterion (BIC, Schwarz, 1978\n), corrected Akaike Information\nCriterion (AICc, Hurvich and Tsai, 1989), Hannan-Quinn\nInformation Criterion (HQIC, Hannan and Quinn, 1979), a\nbootstrap approximation of the Widely Applicable Information\nCriterion (WAIC, Watanabe, 2010), k-fold cross-validation,\nfrailty variance estimation, survival, hazard, median, risk,\nand marginal predictions, Cox-Snell (Cox and Snell, 1968),\nmartingale (Barlow and Prentice, 1988), and deviance residuals\nwith a Kolmogorov-Smirnov goodness-of-fit test, influence\ndiagnostics (leverage, Cook's distance, difference in fits\n(DFFITS), difference in betas (DFBETAS); Belsley, Kuh, and\nWelsch, 1980), random data generation under all eight censoring\nmechanisms, a Monte Carlo simulation-study function, and a\ndiagnostic and survival plotting suite.", "License": "GPL-3", "VignetteBuilder": "knitr", "Encoding": "UTF-8", "Language": "en-US", "RoxygenNote": "7.3.3", "Config/testthat/edition": "3", "NeedsCompilation": "no", "Packaged": { "Date": "2026-09-21 11:43:46 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": "2026-08-07 19:40:06 UTC", "RemoteUrl": "https://github.com/cran/MultiFrailty", "RemoteRef": "HEAD", "RemoteSha": "2186e48d874cea3b85549f7393a4a05a1ae634eb", "_user": "shikhartyagi", "_type": "src", "_file": "MultiFrailty_0.1.0.tar.gz", "_fileid": "https://r2.ropensci.org/a0ed7634b36166562b2bdf204b12c0ee080e0d6d6500e933710c70edf37c763d", "_filesize": 200621, "_sha256": "a0ed7634b36166562b2bdf204b12c0ee080e0d6d6500e933710c70edf37c763d", "_expires": "2026-12-30T11:48:18.000Z", "_created": "2026-09-21T11:43:46.000Z", "_published": "2026-09-21T11:48:20.563Z", "_jobs": [ { "job": 106319674056, "time": 148, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "10635439804" }, { "job": 106319674092, "time": 141, "config": "linux-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "10636314788" }, { "job": 106319674018, "time": 90, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "10636995506" }, { "job": 106319674006, "time": 100, "config": "macos-release-arm64", "r": "4.6.1", "check": "OK", "artifact": "10636551873" }, { "job": 106318594976, "time": 229, "config": "source", "r": "4.6.1", "check": "OK", "artifact": "10635474484" }, { "job": 106319673993, "time": 105, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "10636626309" }, { "job": 106319673979, "time": 81, "config": "windows-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "10636334362" }, { "job": 106319674074, "time": 94, "config": "windows-oldrel-x86_64", "r": "4.5.3", "check": "OK", "artifact": "10636461719" }, { "job": 106319674095, "time": 85, "config": "windows-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "10636516535" } ], "_host": "GitHub-Actions", "_buildurl": "https://github.com/r-universe/shikhartyagi/actions/runs/35595267658", "_status": "success", "_upstream": "https://github.com/cran/MultiFrailty", "_commit": { "id": "2186e48d874cea3b85549f7393a4a05a1ae634eb", "author": "Shikhar Tyagi ", "committer": "cran-robot ", "message": "version 0.1.0\n", "time": 1786131606 }, "_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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