{ "_id": "6a12b314acfb0bcc41d19cc8", "Package": "mzipmed", "Title": "Mediation using MZIP Model", "Version": "1.4.0", "Authors@R": "c(\nperson(given = \"Andrew\",\nfamily = \"Sims\",\nrole = c(\"aut\", \"cre\"),\nemail = \"ams329@uab.edu\",\ncomment = c(ORCID = \"0000-0001-8525-4381\")),\nperson(given=\"Dustin\",family=\"Long\", role=\"aut\"),\nperson(given=\"Hemant\",family=\"Tiwari\",role=\"aut\"),\nperson(given=\"Leann\",family=\"Long\",role=\"aut\"))", "Author": "Andrew Sims [aut, cre]\n(), Dustin Long [aut],\nHemant Tiwari [aut], Leann Long [aut]", "Maintainer": "Andrew Sims ", "Description": "We implement functions allowing for mediation analysis to\nbe performed in cases where the mediator is a count variable\nwith excess zeroes. First a function is provided allowing users\nto perform analysis for zero-inflated count variables using the\nmarginalized zero-inflated Poisson (MZIP) model (Long et al.\n2014 ). Using the counterfactual approach\nto mediation and MZIP we can obtain natural direct and indirect\neffects for the overall population. Using delta method\nprocesses variance estimation can be performed instantaneously.\nAlternatively, bootstrap standard errors can be used. We also\nprovide functions for cases with exposure-mediator interactions\nwith four-way decomposition of total effect.", "Encoding": "UTF-8", "LazyData": "true", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.1.2", "License": "MIT + file LICENSE", "VignetteBuilder": "knitr", "Repository": "https://ams329.r-universe.dev", "Date/Publication": "2023-07-07 15:52:32 UTC", "RemoteUrl": "https://github.com/ams329/mzipmed", "RemoteRef": "HEAD", "RemoteSha": "4cdb39639c710a216fb64afe3cd3962c83a67314", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-24 08:09:53 UTC", "User": "root" }, "MD5sum": "74c8c250b5d5781ce7a8465d19809ae6", "_user": "ams329", "_type": "src", "_file": "mzipmed_1.4.0.tar.gz", "_fileid": "8f3faad3b3b3f7986700808ab117ce89d494141942d7d95f0c3dcf71f8f96f85", "_filesize": 196457, "_sha256": "8f3faad3b3b3f7986700808ab117ce89d494141942d7d95f0c3dcf71f8f96f85", "_created": "2026-05-24T08:09:53.000Z", "_published": "2026-05-24T08:13:08.780Z", "_distro": "noble", 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77582705325, "time": 103, "config": "windows-release", "r": "4.6.0", "check": "NOTE", "artifact": "7183548539" } ], "_buildurl": "https://github.com/r-universe/ams329/actions/runs/26355929222", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/ams329/mzipmed", "_commit": { "id": "4cdb39639c710a216fb64afe3cd3962c83a67314", "author": "ams329 ", "committer": "ams329 ", "message": "v1.4.0\n\nAdded offsets\n", "time": 1688745152 }, "_maintainer": { "name": "Andrew Sims", "email": "ams329@uab.edu", "login": "ams329", "description": "", "uuid": 109387503, "orcid": "0000-0001-8525-4381" }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 2.10", "role": "Depends" }, { "package": "MASS", "role": "Imports" }, { "package": "stats", "role": "Imports" }, { "package": "matrixStats", "role": "Imports" }, { "package": "sandwich", "role": "Imports" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" } ], 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"_vignettes": [ { "source": "mzipmed-vignette.Rmd", "filename": "mzipmed-vignette.html", "title": "Introduction to the mzipmed R package", "author": "Andrew Sims", "engine": "knitr::rmarkdown", "headings": [ "Brief introduction to counterfactual approach to mediation", "Brief overview of MZIP", "mzipmed_data overview", "mzip() function for analysis with zero-inflated count variables", "Mediation with Zero-Inflated Count Outcomes", "Continuous Mediators", "Binary Mediators", "Mediation with Zero-Inflated Count Mediators", "Continuous Outcomes with ZI Mediators", "Binary outcomes with ZI Mediators", "Extensions of functions to cases with exposure-mediator interactions", "Conclusion", "References" ], "created": "2023-04-19 16:36:37", "modified": "2023-07-07 15:52:32", "commits": 2 } ], "_score": 3, "_indexed": true, "_nocasepkg": "mzipmed", "_universes": [ "ams329" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.4.0", "date": "2026-05-24T08:11:56.000Z", "distro": "noble", 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