{ "_id": "6a1f087db401979e7341c112", "Package": "ArArRedux", "Title": "Rigorous Data Reduction and Error Propagation of Ar40 / Ar39\nData", "Version": "1.0", "Date": "2018-08-13", "Authors@R": "person(\"Pieter\", \"Vermeesch\", , \"p.vermeesch@ucl.ac.uk\", role = c(\"aut\", \"cre\"))", "Description": "Processes noble gas mass spectrometer data to determine\nthe isotopic composition of argon (comprised of Ar36, Ar37,\nAr38, Ar39 and Ar40) released from neutron-irradiated\npotassium-bearing minerals. Then uses these compositions to\ncalculate precise and accurate geochronological ages for\nmultiple samples as well as the covariances between them. Error\npropagation is done in matrix form, which jointly treats all\nsamples and all isotopes simultaneously at every step of the\ndata reduction process. Includes methods for regression of the\ntime-resolved mass spectrometer signals to t=0 ('time zero')\nfor both single- and multi-collector instruments, blank\ncorrection, mass fractionation correction, detector\nintercalibration, decay corrections, interference corrections,\ninterpolation of the irradiation parameter between neutron\nfluence monitors, and (weighted mean) age calculation. All\noperations are performed on the logs of the ratios between the\ndifferent argon isotopes so as to properly treat them as\n'compositional data', sensu Aitchison [1986, The Statistics of\nCompositional Data, Chapman and Hall].", "Author": "Pieter Vermeesch [aut, cre]", "Maintainer": "Pieter Vermeesch ", "License": "GPL-2", "LazyData": "true", "NeedsCompilation": "no", "RoxygenNote": "6.0.1", "Repository": "https://pvermees.r-universe.dev", "Date/Publication": "2018-10-03 17:00:00 UTC", "RemoteUrl": "https://github.com/pvermees/ararredux", "RemoteRef": "HEAD", "RemoteSha": "9d8c84244c769a40642b43ef777789dd333c7f12", "Packaged": { "Date": "2026-05-18 06:23:29 UTC", "User": "root" }, "MD5sum": "f11b036db1fada6f9c65c044f294a7f3", "_user": "pvermees", "_type": "src", "_file": "ArArRedux_1.0.tar.gz", "_fileid": "989c92df8b02aeb285efbd5d00891edf2af5ce3ebeb352633810384e23793a47", "_filesize": 279658, "_sha256": "989c92df8b02aeb285efbd5d00891edf2af5ce3ebeb352633810384e23793a47", "_created": "2026-05-18T06:23:29.000Z", "_published": "2026-06-02T16:44:45.516Z", "_distro": "noble", "_jobs": [ { "job": 79123797592, "time": 111, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "NOTE", "artifact": "7050849498" }, { "job": 79123797881, "time": 102, "config": "linux-release-x86_64", "r": "4.6.0", "check": "NOTE", "artifact": "7050847808" }, { "job": 79123797625, "time": 200, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "NOTE", "artifact": "7050860116" }, { "job": 79123797838, "time": 153, "config": "macos-release-arm64", "r": "4.6.0", "check": "NOTE", "artifact": "7050850969" }, { "job": 79123797157, "time": 137, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7050824628" }, { "job": 79123796721, "time": 85, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7364129069" }, { "job": 79123797449, "time": 68, "config": "windows-devel", "r": "4.7.0", "check": "NOTE", "artifact": "7050839565" }, { "job": 79123798097, "time": 71, "config": "windows-oldrel", "r": "4.5.3", "check": "NOTE", "artifact": "7050840322" }, { "job": 79123798063, "time": 67, "config": "windows-release", "r": "4.6.0", "check": "NOTE", "artifact": "7050839461" } ], "_buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/pvermees/ararredux", "_commit": { "id": "9d8c84244c769a40642b43ef777789dd333c7f12", "author": "pvermees ", "committer": "pvermees ", "message": "Version 1.0\n", "time": 1538586000 }, "_maintainer": { "name": "Pieter Vermeesch", "email": "p.vermeesch@ucl.ac.uk", "login": "pvermees", "description": "", "uuid": 7851420 }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 3.0.2", "role": "Depends" }, { "package": "utils", "role": "Imports" }, { "package": "stats", "role": "Imports" }, { "package": "methods", "role": "Imports" }, { "package": "graphics", "role": "Imports" }, { "package": "grDevices", "role": "Imports" } ], "_owner": "pvermees", "_selfowned": true, "_usedby": 0, "_updates": [], "_tags": [], "_stars": 1, "_contributors": [ { "user": "pvermees", "count": 6, "uuid": 7851420 } ], "_userbio": { "uuid": 7851420, "type": "user", "name": "Pieter Vermeesch" }, "_downloads": { "count": 223, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/ArArRedux" }, "_devurl": "https://github.com/pvermees/ararredux", "_searchresults": 30, "_rbuild": "4.6.0", "_assets": [ "extra/ArArRedux.html", "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "manual.pdf" ], "_homeurl": "https://github.com/pvermees/ararredux", "_realowner": "pvermees", "_cranurl": true, "_releases": [ { "version": "0.1", "date": "2015-04-29" }, { "version": "0.2", "date": "2015-08-26" }, { "version": "1.0", "date": "2018-10-03" } ], "_exports": [ "average", "averagebyday", "blankcorr", "calibration", "clcorrection", "concat", "decaycorrection", "fitlogratios", "fractionation", "get4039", "getages", "getJfactors", "getmasses", "interference", "loaddata", "loadirradiations", "massfractionation", "newredux", "param", "plotcorr", "process", "read", "redux2isoplotr", "weightedmean" ], "_datasets": [ { "name": "Melbourne", "title": "An example dataset", "object": "Melbourne", "class": [ "list" ], "fields": [], "table": false, "tojson": false } ], "_help": [ { "page": "average", "title": "Calculate the arithmetic mean", "topics": [ "average" ] }, { "page": "averagebyday", "title": "Average all the data collected on the same day.", "topics": [ "averagebyday" ] }, { "page": "blankcorr", "title": "Apply a blank correction", "topics": [ "blankcorr", "blankcorr.default", "blankcorr.PHdata", "blankcorr.timeresolved" ] }, { "page": "blankcorrected", "title": "The 'blankcorrected' class", "topics": [ "blankcorrected" ] }, { "page": "calibration", "title": "Detector calibration", "topics": [ "calibration" ] }, { "page": "clcorrection", "title": "Cl-interference correction", "topics": [ "clcorrection" ] }, { "page": "concat", "title": "Merge a list of logratio data", "topics": [ "concat" ] }, { "page": "decaycorrection", "title": "Correct for radioactive decay occurred since irradiation", "topics": [ "decaycorrection" ] }, { "page": "fitlogratios", "title": "Extrapolation to 'time zero'", "topics": [ "fitlogratios", "fitlogratios.default", "fitlogratios.PHdata", "fitlogratios.timeresolved" ] }, { "page": "fractionation", "title": "Compute the mass fractionation correction", "topics": [ "fractionation" ] }, { "page": "get4039", "title": "Calculate the 40Ar*/39ArK-ratios", "topics": [ "get4039" ] }, { "page": "getages", "title": "Calculate 40Ar/39Ar ages", "topics": [ "getages" ] }, { "page": "getJfactors", "title": "Calculate the irradiation parameter ('J factor')", "topics": [ "getJfactors" ] }, { "page": "getmasses", "title": "Select a subset of isotopes from a dataset", "topics": [ "getmasses", "getmasses.default", "getmasses.logratios", "getmasses.redux", "getmasses.timeresolved" ] }, { "page": "interference", "title": "define the interference corrections", "topics": [ "interference" ] }, { "page": "loaddata", "title": "Load mass spectrometer data", "topics": [ "loaddata" ] }, { "page": "loadirradiations", "title": "Load the irradiation schedule", "topics": [ "loadirradiations" ] }, { "page": "logratios", "title": "The 'logratios' class", "topics": [ "logratios" ] }, { "page": "massfractionation", "title": "Apply the mass fractionation correction", "topics": [ "massfractionation" ] }, { "page": "Melbourne", "title": "An example dataset", "topics": [ "Melbourne" ] }, { "page": "newredux", "title": "Create a new 'redux' object", "topics": [ "newredux" ] }, { "page": "param", "title": "Set or get Ar-Ar_Redux parameters", "topics": [ "param" ] }, { "page": "PHdata", "title": "The 'PHdata' class", "topics": [ "PHdata" ] }, { "page": "plot", "title": "Plot a time resolved mass spectrometry signal", "topics": [ "plot.PHdata", "plot.timeresolved" ] }, { "page": "plotcorr", "title": "Plot a matrix with correlation coefficients", "topics": [ "plotcorr" ] }, { "page": "process", "title": "Process logratio data and calculate 40Ar/39Ar ages", "topics": [ "process" ] }, { "page": "read", "title": "Read mass spectrometer data", "topics": [ "read" ] }, { "page": "redux", "title": "The 'redux' class", "topics": [ "redux" ] }, { "page": "redux2isoplotr", "title": "Export 'ArArRedux' data to 'IsoplotR'", "topics": [ "redux2isoplotr" ] }, { "page": "results", "title": "The 'results' class", "topics": [ "results" ] }, { "page": "subset", "title": "Select a subset of some data", "topics": [ "subset.logratios", "subset.redux", "subset.results", "subset.timeresolved" ] }, { "page": "summary", "title": "Summary table", "topics": [ "summary.results" ] }, { "page": "timeresolved", "title": "The 'timeresolved' class", "topics": [ "timeresolved" ] }, { "page": "weightedmean", "title": "Calculate the weighted mean age", "topics": [ "weightedmean" ] } ], "_rundeps": [], "_score": 2.4771212547196626, "_indexed": true, "_nocasepkg": "ararredux", "_universes": [ "pvermees" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.0", "date": "2026-05-18T06:25:15.000Z", "distro": "noble", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "e9beeadf6bddeb1601b045c322af89e2af3e694510ea2a27e385b223af34937b", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" }, { "r": "4.6.0", "os": "linux", "version": "1.0", "date": "2026-05-18T06:25:10.000Z", "distro": "noble", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "4740cc3636e10d03e393d93e318646acd48992e00cc06d44eb503b99f2ac4d14", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" }, { "r": "4.5.3", "os": "mac", "version": "1.0", "date": "2026-05-18T06:26:02.000Z", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "58ea6dd8ed7f536babce320148508b47745344b51ac32378daf9cc52e88ff353", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" }, { "r": "4.6.0", "os": "mac", "version": "1.0", "date": "2026-05-18T06:25:23.000Z", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "b92322c863538117639c7d79c31475f6d31d66d4536a9ee8b68a4062db5802da", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" }, { "r": "4.7.0", "os": "win", "version": "1.0", "date": "2026-05-18T06:24:27.000Z", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "c0a3f0944394e2f420067ceae882a5700ac08b948119a9f4692f02e414c4bb5a", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" }, { "r": "4.5.3", "os": "win", "version": "1.0", "date": "2026-05-18T06:24:31.000Z", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "094ab99555704c6807a88ac6d43731718b1ff1ac1bbb1a8e7b0fc300ae1730c5", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" }, { "r": "4.6.0", "os": "win", "version": "1.0", "date": "2026-05-18T06:24:28.000Z", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "672e30b3fce81da29f19cabaf7eeb88982a569400dbfddfc3f91aaac88cd80a1", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" }, { "r": "4.6.0", "os": "wasm", "version": "1.0", "date": "2026-06-02T16:44:28.000Z", "commit": "9d8c84244c769a40642b43ef777789dd333c7f12", "fileid": "bbd2f25040b0e4874d19aa614a54d473c983ec57ef6958ae499f36654f635d93", "status": "success", "buildurl": "https://github.com/r-universe/pvermees/actions/runs/26017043009" } ] }