{ "_id": "6a17ee7bacfb0bcc41da56b3", "Package": "tptest", "Type": "Package", "Title": "Universal Turning Point and Inflection Point Tests", "Version": "1.0.3", "Date": "2026-03-07", "Authors@R": "c(\nperson(\"Muhammad\", \"Alkhalaf\",\nemail = \"muhammedalkhalaf@gmail.com\",\nrole = c(\"aut\", \"cre\", \"cph\"),\ncomment = c(ORCID = \"0009-0002-2677-9246\")))", "Description": "Performs turning point and inflection point tests for\nU-shaped and inverse U-shaped relationships in regression\nmodels. Implements the Sasabuchi (1980) test as extended by\nLind and Mehlum (2010) with support for quadratic, cubic,\nlog-quadratic, and inverse functional forms. Features include\ndelta-method standard errors, Fieller confidence intervals,\nSimonsohn (2018) two-lines test, and parametric bootstrap.\nDesigned for post-estimation analysis of linear models, panel\nmodels, and quantile regression. References: Lind and Mehlum\n(2010) ; Sasabuchi\n(1980); Fieller (1954)\n.", "License": "GPL-3", "URL": "https://github.com/muhammedalkhalaf/tptest", "BugReports": "https://github.com/muhammedalkhalaf/tptest/issues", "Encoding": "UTF-8", "LazyData": "true", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.3.3", "Repository": "https://muhammedalkhalaf.r-universe.dev", "Date/Publication": "2026-04-27 20:56:54 UTC", "RemoteUrl": "https://github.com/muhammedalkhalaf/tptest", "RemoteRef": "HEAD", "RemoteSha": "68e0624b338834c0e04d4285b259654139500309", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-28 07:21:58 UTC", "User": "root" }, "Author": "Muhammad Alkhalaf [aut, cre, cph] (ORCID:\n)", "Maintainer": "Muhammad Alkhalaf ", "MD5sum": "5857aa4367ae6d33af076faa82aa72d6", "_user": "muhammedalkhalaf", "_type": "src", "_file": "tptest_1.0.3.tar.gz", "_fileid": "d082e6b3a39b1bbd16c702d2373501c8f6bfe4a69918e2e513865a4659324ec7", "_filesize": 188149, "_sha256": "d082e6b3a39b1bbd16c702d2373501c8f6bfe4a69918e2e513865a4659324ec7", "_created": "2026-05-28T07:21:58.000Z", "_published": "2026-05-28T07:27:55.105Z", "_distro": "noble", "_jobs": [ { "job": 78242979779, "time": 121, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7259998743" }, { "job": 78242979836, "time": 198, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7260023121" }, { "job": 78242979739, "time": 83, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7260061540" }, { "job": 78242979720, "time": 82, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7260053331" }, { "job": 78242631589, "time": 147, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7259962087" }, { "job": 78242979752, "time": 98, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7259989973" }, { "job": 78242979820, "time": 85, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7259987183" }, { "job": 78242979874, "time": 188, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7260020079" }, { "job": 78242979804, "time": 80, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7259986240" } ], "_buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/muhammedalkhalaf/tptest", "_commit": { "id": "68e0624b338834c0e04d4285b259654139500309", "author": "Muhammad Abdullah Alkhalaf ", "committer": "Muhammad Abdullah Alkhalaf ", "message": "Strip UTF-8 BOM from CITATION and source files (no functional change)\n", "time": 1777323414 }, "_maintainer": { "name": "Muhammad Alkhalaf", "email": "muhammedalkhalaf@gmail.com", "login": "muhammedalkhalaf", "uuid": 114047760 }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 4.0.0", "role": "Depends" }, { "package": "stats", "role": "Imports" }, { "package": "graphics", "role": "Imports" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "lmtest", "role": "Suggests" }, { "package": "sandwich", "role": "Suggests" }, { "package": "plm", "role": "Suggests" }, { "package": "quantreg", "role": "Suggests" } ], "_owner": "muhammedalkhalaf", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2026-11", "n": 5 }, { "week": "2026-12", "n": 2 }, { "week": "2026-14", "n": 2 }, { "week": "2026-18", "n": 1 } ], "_tags": [ { "name": "v1.0.3", "date": "2026-03-18" }, { "name": "v1.0.3.1", "date": "2026-03-18" } ], "_stars": 0, "_contributors": [ { "user": "muhammedalkhalaf", "count": 10, "uuid": 114047760 } ], "_userbio": { "uuid": 114047760, "type": "user", "name": "Muhammad Al Khalaf" }, "_downloads": { "count": 451, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/tptest" }, "_devurl": "https://github.com/muhammedalkhalaf/tptest", "_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/readme.html", "extra/readme.md", "extra/tptest.html", "manual.pdf" ], "_homeurl": "https://github.com/muhammedalkhalaf/tptest", "_realowner": "muhammedalkhalaf", "_cranurl": true, "_releases": [ { "version": "1.0.3", "date": "2026-04-09" } ], "_exports": [ "fieller_ci", "tptest", "twolines_test" ], "_datasets": [ { "name": "ekc", "title": "Environmental Kuznets Curve Data", "object": "ekc", "class": [ "data.frame" ], "fields": [ "country", "year", "gdp", "gdp_sq", "emissions", "emissions_log" ], "rows": 500, "table": true, "tojson": true } ], "_help": [ { "page": "ekc", "title": "Environmental Kuznets Curve Data", "topics": [ "ekc" ] }, { "page": "fieller_ci", "title": "Fieller Confidence Interval for Ratio of Coefficients", "topics": [ "fieller_ci" ] }, { "page": "tptest", "title": "Universal Turning Point and Inflection Point Test", "topics": [ "tptest" ] }, { "page": "tptest-methods", "title": "Methods for tptest Objects", "topics": [ "coef.tptest", "confint.tptest", "plot.tptest", "print.tptest", "summary.tptest", "tptest-methods" ] }, { "page": "twolines_test", "title": "Simonsohn (2018) Two-Lines Test", "topics": [ "twolines_test" ] } ], "_readme": "https://github.com/muhammedalkhalaf/tptest/raw/HEAD/README.md", "_rundeps": [], "_score": 3.3010299956639813, "_indexed": true, "_nocasepkg": "tptest", "_universes": [ "muhammedalkhalaf" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.0.3", "date": "2026-05-28T07:24:06.000Z", "distro": "noble", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "a2a4bf5e26b5e92809a41b75db3c468abbc743477ce487c0f65b98b80346d9b3", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" }, { "r": "4.6.0", "os": "linux", "version": "1.0.3", "date": "2026-05-28T07:25:23.000Z", "distro": "noble", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "a8a4059b1c83e0bda19586d84e11f03eeaa4461240c8270f45ee4193c2a0cf4b", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" }, { "r": "4.5.3", "os": "mac", "version": "1.0.3", "date": "2026-05-28T07:27:25.000Z", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "d577f50643d85a91a3b48fee9dcc3109ce002709295af69b7ef677cd5437aadf", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" }, { "r": "4.6.0", "os": "mac", "version": "1.0.3", "date": "2026-05-28T07:26:59.000Z", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "4a377814570673437a1cf8f54be9bc198c323fe216fcdb9fba93db6d4a252702", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" }, { "r": "4.6.0", "os": "wasm", "version": "1.0.3", "date": "2026-05-28T07:23:47.000Z", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "9975ec77b51092cc9a3bd2abc0d41e378e9a4d2665227852e5d3de358e87ab48", "status": "success", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" }, { "r": "4.7.0", "os": "win", "version": "1.0.3", "date": "2026-05-28T07:23:22.000Z", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "1531d631302d8834d8e73b000222e458a571c784259fa77add97d8da73cf7bb5", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" }, { "r": "4.5.3", "os": "win", "version": "1.0.3", "date": "2026-05-28T07:25:07.000Z", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "e68d90467ba3c90c48dc85028e6b764227fd7c034986f85d15769aba99d143f2", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" }, { "r": "4.6.0", "os": "win", "version": "1.0.3", "date": "2026-05-28T07:23:19.000Z", "commit": "68e0624b338834c0e04d4285b259654139500309", "fileid": "1ddf8fc0432e242c40b9e12f3dfc59db8bb6210fee1485fee7576434f96ac1a1", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/muhammedalkhalaf/actions/runs/26560653240" } ] }