{ "_id": "6ace2a83a14063b82c3b0af5", "Package": "pgt", "Type": "Package", "Title": "Data Envelopment Analysis for Pollution-Generating Technologies", "Version": "0.7.1", "Authors@R": "c(\nperson(\"Erik\", \"Enstad\", email = \"erik.enstad@nhh.no\",\nrole = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0009-0006-1053-3849\")))", "Description": "Nonparametric efficiency analysis for pollution-generating\ntechnologies under the materials-balance principle. Implements\nthe weak-G-disposability technology of Hampf and Rodseth (2015)\n, scored by the\nminimal-emission programme of Rodseth (2025)\n with its directional\nrepresentation and five-component decomposition, the\nby-production intersection technology of Murty, Russell and\nLevkoff (2012) , the\nmaterials-balance cost model of Coelli, Lauwers and Van\nHuylenbroeck (2007) and a\nweak-disposability reference model, with a pre-estimation audit\nof every materials-balance account, metafrontier\ndecompositions, bad-output shadow prices, marginal abatement\ncost curves, a cross-axiom comparison harness, a global\nMalmquist-Luenberger productivity index and subsampling\nsensitivity intervals. Estimators are solved with 'lpSolveAPI'.", "License": "GPL (>= 3)", "Encoding": "UTF-8", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.3.3", "Config/testthat/edition": "3", "VignetteBuilder": "knitr", "LazyData": "true", "URL": "https://github.com/iik1/pgt", "BugReports": "https://github.com/iik1/pgt/issues", "Repository": "https://iik1.r-universe.dev", "Date/Publication": "2026-10-13 08:36:58 UTC", "RemoteUrl": "https://github.com/iik1/pgt", "RemoteRef": "HEAD", "RemoteSha": "dd8156fc4ab15602299c275eb6a48a7ef431d457", "NeedsCompilation": "no", "Packaged": { "Date": "2026-10-13 12:28:15 UTC", "User": "root" }, "Author": "Erik Enstad [aut, cre] (ORCID: )", "Maintainer": "Erik Enstad ", "_user": "iik1", "_type": "src", "_file": "pgt_0.7.1.tar.gz", "_fileid": "https://r2.ropensci.org/3e6007e1150411f8e0d9f6d050ef0460c23c6ff9deab269d091d6f07743a3ffb", "_filesize": 837031, "_sha256": "3e6007e1150411f8e0d9f6d050ef0460c23c6ff9deab269d091d6f07743a3ffb", "_expires": "2027-01-21T12:56:30.000Z", "_created": "2026-10-13T12:28:15.000Z", "_published": "2026-10-13T12:56:35.269Z", "_buildurl": "https://github.com/r-universe/iik1/actions/runs/38397123345", "_status": "success", "_host": "GitHub-Actions", "_jobs": [ { "job": 115296542344, "time": 135, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "11812633870" }, { "job": 115296542147, "time": 122, "config": "linux-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "11811924437" }, { "job": 115296542165, "time": 219, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "11814484517" }, { "job": 115296542125, "time": 219, "config": "macos-release-arm64", "r": "4.6.1", "check": "OK", "artifact": "11814329881" }, { "job": 115295194010, "time": 191, "config": "source", "r": "4.6.1", "check": "OK", "artifact": "11811928975" }, { "job": 115296542349, "time": 93, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "11812089052" }, { "job": 115296542171, "time": 110, "config": "windows-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "11812039203" }, { "job": 115296542151, "time": 108, "config": "windows-oldrel-x86_64", "r": "4.5.3", "check": "OK", "artifact": "11812398894" }, { "job": 115296542220, "time": 103, "config": "windows-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "11813176116" } ], "_upstream": "https://github.com/iik1/pgt", "_commit": { "id": "dd8156fc4ab15602299c275eb6a48a7ef431d457", "author": "iik1 ", "committer": "iik1 ", "message": "pgt 0.7.1: check LP solutions against their rows; citations checked against the sources\n\nEvery LP kernel now re-evaluates the rows and bounds of its programme at\nthe point lp_solve returns (.lp_verified()). On uscoal with the sulfur\ncoefficients scaled by 0.9, lp_solve accepted a point 6 per cent above\nthe input-fixed cap of the 38 MWh Painesville plant because its own\ntolerances exceed several per cent of a small unit's rows on the\nunit-magnitude copy; such a point is now reported as infeasible. The\ncap test of \"wgd_input_fixed\" uses a relative 1e-5. On the shipped\ndata the only change is Painesville's status in that scenario; new\ntests in test-scaling.R cover it.\n\nDocumentation follows a check of every citation against the cited\npapers: \"wgd\" is the Hampf and Rodseth (2015) technology scored by the\nminimal-emission programme of Rodseth (2025, Eq. 6); \"fdmo\" is Eq. 13,\nthe indirect form of Eq. 12, with the sign restrictions of Eq. 14;\n\"byprod\" cites Murty, Russell and Levkoff (2012, Eqs. 4.5, 4.7, 5.7\nand 7.1); the boot_pgt() and pgt_ml() help state the conditions of the\ncited results; the uscoal help notes the 95 per cent sulfur conversion\nof Rodseth (2017). The pigfarms replication uses v = 7/6, under which\n\"wgd\" reproduces every Table 2 target. The development NEWS is folded\ninto 0.7.1 and cran-comments records the row check.\n", "time": 1791880618 }, "_maintainer": { "name": "Erik Enstad", "email": "erik.enstad@nhh.no", "orcid": "0009-0006-1053-3849" }, "_distro": "resolute", "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 4.0.0", "role": "Depends" }, { "package": "stats", "role": "Imports" }, { "package": "graphics", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "lpSolveAPI", "role": "Imports" }, { "package": "testthat", "version": ">= 3.1.7", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "frontier", "role": "Suggests" } ], "_owner": "iik1", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2026-29", "n": 11 }, { "week": "2026-30", "n": 1 }, { "week": "2026-32", "n": 7 }, { "week": "2026-33", "n": 2 }, { "week": "2026-34", "n": 1 }, { "week": "2026-36", "n": 2 }, { "week": 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