{ "_id": "6a1547f6acfb0bcc41d57ebc", "Package": "astrochron", "Type": "Package", "Title": "A Computational Tool for Astrochronology", "Version": "1.6", "Date": "2026-02-24", "Authors@R": "c(person(given = \"Stephen\", family = \"Meyers\", role = c(\"aut\", \"cre\"),\nemail = \"smeyers@geology.wisc.edu\"),\nperson(given = \"Alberto\", family = \"Malinverno\", role = \"ctb\"),\nperson(given = \"Linda\", family = \"Hinnov\", role = \"ctb\"),\nperson(given = \"Christian\", family = \"Zeeden\", role = \"ctb\"),\nperson(given = \"Huaran\", family = \"Liu\", role = \"ctb\"),\nperson(given = \"Vincent\", family = \"Moron\", role = \"ctb\"),\nperson(given = \"Michel\", family = \"Crucifix\", role = \"ctb\"))", "Maintainer": "Stephen Meyers ", "Description": "Routines for astrochronologic testing, astronomical time\nscale construction, and time series analysis\n. Also included are a\nrange of statistical analysis and modeling routines that are\nrelevant to time scale development and paleoclimate analysis.", "License": "GPL-3", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-05-26 07:09:10 UTC", "User": "root" }, "Author": "Stephen Meyers [aut, cre], Alberto Malinverno [ctb], Linda\nHinnov [ctb], Christian Zeeden [ctb], Huaran Liu [ctb], Vincent\nMoron [ctb], Michel Crucifix [ctb]", "Repository": "https://cran.r-universe.dev", "Date/Publication": "2026-02-25 06:31:10 UTC", "RemoteUrl": "https://github.com/cran/astrochron", "RemoteRef": "HEAD", "RemoteSha": "9ecd5b4e44b488c60a253893a2aec503c4abd10d", "MD5sum": "78abdcd1c26b60bbf6bbe3c029101ba9", "_user": "cran", "_type": "src", "_file": "astrochron_1.6.tar.gz", "_fileid": "16dcc8ffbdb1e602f93469d9e1afb3ebe98c1757187ac4fd10fe165ba6e3df96", "_filesize": 867096, "_sha256": "16dcc8ffbdb1e602f93469d9e1afb3ebe98c1757187ac4fd10fe165ba6e3df96", "_created": "2026-05-26T07:09:10.000Z", "_published": "2026-05-26T07:12:54.073Z", "_distro": "noble", "_jobs": [ { "job": 77824644371, "time": 176, "config": "linux-devel-arm64", "r": "4.7.0", "check": "OK", "artifact": "7210956248" }, { "job": 77824644415, "time": 177, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7210956646" }, { "job": 77824644391, "time": 167, "config": "linux-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7210954036" }, { "job": 77824644406, "time": 163, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7210952812" }, { "job": 77824256502, "time": 174, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7210906730" }, { "job": 77824644361, "time": 106, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7210937370" } ], "_buildurl": "https://github.com/r-universe/cran/actions/runs/26437681276", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/cran/astrochron", "_commit": { "id": "9ecd5b4e44b488c60a253893a2aec503c4abd10d", "author": "Stephen Meyers ", "committer": "cran-robot ", "message": "version 1.6\n", "time": 1772001070 }, "_maintainer": { "name": "Stephen Meyers", "email": "smeyers@geology.wisc.edu" }, "_registered": true, "_dependencies": [ { "package": "multitaper", "role": "Imports" }, { "package": "parallel", "role": "Imports" }, { "package": "doParallel", "role": "Imports" }, { "package": "foreach", "role": "Imports" }, { "package": "iterators", "role": "Imports" }, { "package": "IDPmisc", "role": "Imports" }, { "package": "fields", "role": "Imports" }, { "package": "viridisLite", "role": "Imports" }, { "package": "palinsol", "role": "Imports" } ], "_owner": "cran", "_selfowned": false, "_usedby": 1, "_updates": [ { "week": "2026-09", "n": 1 } ], "_tags": [ { "name": "1.6", "date": "2026-02-25" } ], "_stars": 6, "_userbio": { "uuid": 6899542, "type": "organization", "name": "cran", "description": "Unofficial read-only mirror of all CRAN R packages" }, "_downloads": { "count": 571, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/astrochron" }, "_mentions": 5, "_searchresults": 146, "_rbuild": "4.6.0", "_assets": [ "extra/astrochron.html", "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/NEWS.html", "extra/NEWS.txt", "manual.pdf" ], "_realowner": "cran", "_cranurl": false, "_releases": [ { "version": "0.3", "date": "2014-06-30" }, { "version": "0.3.1", "date": "2014-07-20" }, { "version": "0.4.1", "date": "2015-03-17" }, { "version": "0.4.2", "date": "2015-03-20" }, { "version": "0.4.3", "date": "2015-07-01" }, { "version": "0.5", "date": "2015-12-18" }, { "version": "0.6", "date": "2016-06-17" }, { "version": "0.6.5", "date": "2016-09-05" }, { "version": "0.6.6", "date": "2017-03-20" }, { "version": "0.7", "date": "2017-06-14" }, { "version": "0.8", "date": "2018-05-16" }, { "version": "0.9", "date": "2019-01-08" }, { "version": "1.0", "date": "2021-02-11" }, { "version": "1.1", "date": "2021-10-05" }, { "version": "1.2", "date": "2023-08-26" }, { "version": "1.3", "date": "2024-05-28" }, { "version": "1.4", "date": "2024-09-17" }, { "version": "1.5", "date": "2025-04-28" }, { "version": "1.6", "date": "2026-02-25" } ], "_exports": [ "accum", "anchorTime", "ar1", "ar1etp", "arcsinT", "armaGen", "asm", "autoPlot", "bandpass", "bergerPeriods", "bicoherence", "bioturb", "calcPeriods", "cb", "clipIt", "confAdjust", "constantSedrate", "conv_fft", "cosTaper", "cycles", "deconv", "delPts", "demean", "detrend", "diffAccum", "divTrend", "dpssTaper", "eAsm", "eAsmTrack", "eha", "eTimeOpt", "eTimeOptTrack", "etp", "extract", "flip", "freq2sedrate", "gausTaper", "getColor", "getData", "getLaskar", "hannTaper", "headn", "hilbert", "idPts", "imbrie", "impulseResponse", "insoDiff", "insoMap", "insoSeries", "integratePower", "iso", "linage", "linterp", "linterpLH13", "logT", "lowpass", "lowspec", "makeNoise", "mtm", "mtmAR", "mtmML96", "mtmPL", "multiTest", "mwCor", "mwin", "mwinGrid", "mwMinMax", "mwStats", "mwStatsGrid", "noKernel", "noLow", "pad", "peak", "periodogram", "pl", "plotEha", "plS", "prewhiteAR", "prewhiteAR1", "pwrLaw", "pwrLawFit", "rankSeries", "read", "readMatrix", "repl0", "replEps", "resample", "rmNA", "s", "sedRamp", "sedrate2time", "slideCor", "sortNave", "stepHeat", "stratPCA", "strats", "surrogateCor", "surrogates", "synthStrat", "taner", "tanerFC", "testBackground", "testPrecession", "testTilt", "timeOpt", "timeOptB", "timeOptBMCMC", "timeOptBMCMCplot", "timeOptBSim", "timeOptMCMC", "timeOptPlot", "timeOptSim", "timeOptSimPwrLaw", "timeOptTemplate", "timeOptTemplatePlot", "timeOptTemplateSim", "tones", "traceFreq", "tracePeak", "trackFreq", "trackPeak", "trim", "trimAT", "trough", "tune", "unbioturb", "writeCSV", "writeT", "wtMean", "xplot", "zoomIn" ], "_datasets": [ { "name": "modelA", "title": "Example stratigraphic model series", "object": "modelA", "file": "modelA.rda", "class": [ "data.frame" ], "fields": [ "m", "CaCO3" ], "rows": 499, "table": true, "tojson": true } ], "_help": [ { "page": "astrochron-package", "title": "astrochron: A Computational Tool for Astrochronology", "topics": [ "astrochron-package", "astrochron" ] }, { "page": "accum", "title": "Calculate geochemical proxy accumulation rates", "topics": [ "accum" ] }, { "page": "anchorTime", "title": "Anchor a floating astrochronology to a radioisotopic age", "topics": [ "anchorTime" ] }, { "page": "ar1", "title": "Generate AR(1) surrogates", "topics": [ "ar1" ] }, { "page": "ar1etp", "title": "AR(1) + ETP simulation routine", "topics": [ "ar1etp" ] }, { "page": "arcsinT", "title": "Arcsine transformation of stratigraphic series", "topics": [ "arcsinT" ] }, { "page": "armaGen", "title": "Generate autoregressive moving-average model", "topics": [ "armaGen" ] }, { "page": "asm", "title": "Average Spectral Misfit", "topics": [ "asm" ] }, { "page": "autoPlot", "title": "Automatically plot multiple stratigraphic series, with smoothing if desired", "topics": [ "autoPlot" ] }, { "page": "bandpass", "title": "Bandpass filter stratigraphic series", "topics": [ "bandpass" ] }, { "page": "bergerPeriods", "title": "Obliquity and precession periods of Berger et al. (1992)", "topics": [ "bergerPeriods" ] }, { "page": "bicoherence", "title": "bicoherence: Calculate bispectrum and bicoherence using WOSA method as detailed in Choudhury et al. (2008).", "topics": [ "bicoherence" ] }, { "page": "bioturb", "title": "Bioturbate time series using diffusion model from Guinasso and Schinck (1975), as in Liu et al. (2021)", "topics": [ "bioturb" ] }, { "page": "calcPeriods", "title": "Calculate eccentricity, obliquity and precession periods in ka, given g, s and k in arcsec/yr", "topics": [ "calcPeriods" ] }, { "page": "cb", "title": "Combine multiple vectors", "topics": [ "cb" ] }, { "page": "clipIt", "title": "Create non-linear response by clipping stratigraphic series", "topics": [ "clipIt" ] }, { "page": "confAdjust", "title": "Adjust spectrum confidence levels for multiple comparisons", "topics": [ "confAdjust" ] }, { "page": "constantSedrate", "title": "Apply a constant sedimentation rate model to transform a spatial series to temporal series", "topics": [ "constantSedrate" ] }, { "page": "conv_fft", "title": "Convolution through Fast Fourier Transform", "topics": [ "conv_fft" ] }, { "page": "cosTaper", "title": "Apply cosine taper to stratigraphic series", "topics": [ "cosTaper" ] }, { "page": "cycles", "title": "Generate harmonic model", "topics": [ "cycles" ] }, { "page": "deconv", "title": "Wiener Deconvolution through Fast Fourier Transform", "topics": [ "deconv" ] }, { "page": "delPts", "title": "Interactively delete points in plot", "topics": [ "delPts" ] }, { "page": "demean", "title": "Remove mean value from stratigraphic series", "topics": [ "demean" ] }, { "page": "detrend", "title": "Subtract linear trend from stratigraphic series", "topics": [ "detrend" ] }, { "page": "diffAccum", "title": "Model differential accumulation", "topics": [ "diffAccum" ] }, { "page": "divTrend", "title": "Divide by linear trend in stratigraphic series", "topics": [ "divTrend" ] }, { "page": "dpssTaper", "title": "Apply DPSS taper to stratigraphic series", "topics": [ "dpssTaper" ] }, { "page": "eAsm", "title": "Evolutive Average Spectral Misfit", "topics": [ "eAsm" ] }, { "page": "eAsmTrack", "title": "Track ASM null hypothesis significance level minima in eASM results", "topics": [ "eAsmTrack" ] }, { "page": "eha", "title": "Evolutive Harmonic Analysis & Evolutive Power Spectral Analysis", "topics": [ "eha" ] }, { "page": "eTimeOpt", "title": "eTimeOpt: Evolutive implementation of TimeOpt (Meyers, 2015; Meyers, 2019)", "topics": [ "eTimeOpt" ] }, { "page": "eTimeOptTrack", "title": "Track eTimeOpt r2 maxima", "topics": [ "eTimeOptTrack" ] }, { "page": "etp", "title": "Generate eccentricity-tilt-precession models", "topics": [ "etp" ] }, { "page": "extract", "title": "Extract record from EHA time-frequency output or eAsm output", "topics": [ "extract" ] }, { "page": "flip", "title": "Flip stratigraphic series", "topics": [ "flip" ] }, { "page": "freq2sedrate", "title": "Convert record of local spatial frequency (from EHA) to sedimentation rate curve", "topics": [ "freq2sedrate" ] }, { "page": "gausTaper", "title": "Apply Gaussian taper to stratigraphic series", "topics": [ "gausTaper" ] }, { "page": "getColor", "title": "Query R for color information", "topics": [ "getColor" ] }, { "page": "getData", "title": "Download file from astrochron data server", "topics": [ "getData" ] }, { "page": "getLaskar", "title": "Download Laskar et al. (2004, 2011a, 2011b) astronomical solutions", "topics": [ "getLaskar" ] }, { "page": "hannTaper", "title": "Apply Hann taper to stratigraphic series", "topics": [ "hannTaper" ] }, { "page": "headn", "title": "List column numbers for each variable", "topics": [ "headn" ] }, { "page": "hilbert", "title": "Hilbert transform of stratigraphic series", "topics": [ "hilbert" ] }, { "page": "idPts", "title": "Interactively identify points in plot", "topics": [ "idPts" ] }, { "page": "imbrie", "title": "Imbrie and Imbrie (1980) ice sheet model", "topics": [ "imbrie" ] }, { "page": "impulseResponse", "title": "Impulse response function calculation", "topics": [ "impulseResponse" ] }, { "page": "insoDiff", "title": "insolation difference map using Laskar et al. (2004) insolation calculations", "topics": [ "insoDiff" ] }, { "page": "insoMap", "title": "generate an insolation map using Laskar et al. (2004) insolation calculations", "topics": [ "insoMap" ] }, { "page": "insoSeries", "title": "Laskar et al. (2004) insolation calculations", "topics": [ "insoSeries" ] }, { "page": "integratePower", "title": "Determine the total power within a given bandwidth", "topics": [ "integratePower" ] }, { "page": "iso", "title": "Isolate data from a specified stratigraphic interval", "topics": [ "iso" ] }, { "page": "linage", "title": "Tune stratigraphic series to an astronomical target using graphical interface", "topics": [ "linage" ] }, { "page": "linterp", "title": "Piecewise linear interpolation of stratigraphic series", "topics": [ "linterp" ] }, { "page": "linterpLH13", "title": "Piecewise linear interpolation of stratigraphic series using the approach of Laepple and Huybers (2013)", "topics": [ "linterpLH13" ] }, { "page": "logT", "title": "Log transformation of stratigraphic series", "topics": [ "logT" ] }, { "page": "lowpass", "title": "Lowpass filter stratigraphic series", "topics": [ "lowpass" ] }, { "page": "lowspec", "title": "Robust Locally-Weighted Regression Spectral Background Estimation", "topics": [ "lowspec" ] }, { "page": "makeNoise", "title": "Generate noise surrogates from a theoretical power spectrum", "topics": [ "makeNoise" ] }, { "page": "modelA", "title": "Example stratigraphic model series", "topics": [ "modelA" ] }, { "page": "mtm", "title": "Multitaper method spectral analysis", "topics": [ "mtm" ] }, { "page": "mtmAR", "title": "Intermediate spectrum test of Thomson et al. (2001)", "topics": [ "mtmAR" ] }, { "page": "mtmML96", "title": "Mann and Lees (1996) robust red noise MTM analysis", "topics": [ "mtmML96" ] }, { "page": "mtmPL", "title": "Multitaper Method Spectral Analysis with Power Law (1/f) fit", "topics": [ "mtmPL" ] }, { "page": "multiTest", "title": "Adjust spectral p-values for multiple comparisons", "topics": [ "multiTest" ] }, { "page": "mwCor", "title": "Calculate moving window correlation coefficient for two stratigraphic series, using a 'dynamic window'", "topics": [ "mwCor" ] }, { "page": "mwin", "title": "Determine 'dynamic moving window' for stratigraphic series, adjusting for changing sample density to maintain a window of constant duration", "topics": [ "mwin" ] }, { "page": "mwinGrid", "title": "Determine 'dynamic moving window' for stratigraphic series, adjusting for changing sample density to maintain a window of constant duration; output on evenly spaced grid", "topics": [ "mwinGrid" ] }, { "page": "mwMinMax", "title": "'Dynamic window' moving assessment of maxima and minima in stratigraphic series", "topics": [ "mwMinMax" ] }, { "page": "mwStats", "title": "'Dynamic window' moving average, median and variance of stratigraphic series", "topics": [ "mwStats" ] }, { "page": "mwStatsGrid", "title": "'Dynamic window' moving average, median and variance of stratigraphic series, using evenly spaced spatial/temporal grid", "topics": [ "mwStatsGrid" ] }, { "page": "noKernel", "title": "Remove Gaussian kernel smoother from stratigraphic series", "topics": [ "noKernel" ] }, { "page": "noLow", "title": "Fit and remove Lowess smoother from stratigraphic series", "topics": [ "noLow" ] }, { "page": "pad", "title": "Pad stratigraphic series with zeros", "topics": [ "pad" ] }, { "page": "peak", "title": "Identify maxima of peaks in series, filter at desired threshold value", "topics": [ "peak" ] }, { "page": "periodogram", "title": "Simple periodogram", "topics": [ "periodogram" ] }, { "page": "pl", "title": "Set up plots", "topics": [ "pl" ] }, { "page": "plotEha", "title": "Create color time-frequency plots from eha results.", "topics": [ "plotEha" ] }, { "page": "plS", "title": "Set default plotting parameters for vertical stratigraphic plots", "topics": [ "plS" ] }, { "page": "prewhiteAR", "title": "Prewhiten stratigraphic series with autoregressive filter, order selected by Akaike Information Criterion", "topics": [ "prewhiteAR" ] }, { "page": "prewhiteAR1", "title": "Prewhiten stratigraphic series with AR1 filter, using 'standard' or unbiased estimate of rho", "topics": [ "prewhiteAR1" ] }, { "page": "pwrLaw", "title": "Generate power law (1/f) noise surrogates", "topics": [ "pwrLaw" ] }, { "page": "pwrLawFit", "title": "Estimate power law (1/f) fit to power spectrum", "topics": [ "pwrLawFit" ] }, { "page": "rankSeries", "title": "Create lithofacies rank series from bed thickness data", "topics": [ "rankSeries" ] }, { "page": "read", "title": "Read data from file", "topics": [ "read" ] }, { "page": "readMatrix", "title": "Read data matrix from file", "topics": [ "readMatrix" ] }, { "page": "repl0", "title": "Replace values < 0 with 0", "topics": [ "repl0" ] }, { "page": "replEps", "title": "Replace values <= 0 with smallest positive value", "topics": [ "replEps" ] }, { "page": "resample", "title": "Resample stratigraphic series", "topics": [ "resample" ] }, { "page": "rmNA", "title": "Remove stratigraphic levels that contain one or more NAs", "topics": [ "rmNA" ] }, { "page": "s", "title": "Standardize variable in stratigraphic series", "topics": [ "s" ] }, { "page": "sedRamp", "title": "Apply 'ramping' sedimentation rate model to convert time to stratigraphy", "topics": [ "sedRamp" ] }, { "page": "sedrate2time", "title": "Integrate sedimentation rate curve to obtain time-space map", "topics": [ "sedrate2time" ] }, { "page": "slideCor", "title": "Identify optimal spatial/temporal shift to maximize correlation between two stratigraphic/time series.", "topics": [ "slideCor" ] }, { "page": "sortNave", "title": "Remove missing entries, sort data, average duplicates", "topics": [ "sortNave" ] }, { "page": "stepHeat", "title": "Ar/Ar Geochronology: Generate an Ar/Ar age spectrum and calculate step-heating plateau age.", "topics": [ "stepHeat" ] }, { "page": "stratPCA", "title": "Principal Component Analysis on Stratigraphic Series", "topics": [ "stratPCA" ] }, { "page": "strats", "title": "Summary statistics for stratigraphic series", "topics": [ "strats" ] }, { "page": "surrogateCor", "title": "Estimate correlation coefficient and significance for serially correlated data", "topics": [ "surrogateCor" ] }, { "page": "surrogates", "title": "Generate phase-randomized surrogate series as in Ebisuzaki (1997)", "topics": [ "surrogates" ] }, { "page": "synthStrat", "title": "Synthesize stratigraphy from forcing function", "topics": [ "synthStrat" ] }, { "page": "taner", "title": "Apply Taner bandpass or lowpass filter to stratigraphic series", "topics": [ "taner" ] }, { "page": "tanerFC", "title": "Apply Taner bandpass or lowpass filter to Fourier coefficients", "topics": [ "tanerFC" ] }, { "page": "testBackground", "title": "Evaluate power spectrum false positive rates via Monte Carlo simulation", "topics": [ "testBackground" ] }, { "page": "testPrecession", "title": "Astrochronologic testing via the precession amplitude modulation approach of Zeeden et al. (2015).", "topics": [ "testPrecession" ] }, { "page": "testTilt", "title": "Astrochronologic testing via the obliquity amplitude modulation approach of Zeeden et al. (2019).", "topics": [ "testTilt" ] }, { "page": "timeOpt", "title": "TimeOpt: Evaluation of eccentricity-related amplitude modulation and bundling in paleoclimate data", "topics": [ "timeOpt" ] }, { "page": "timeOptB", "title": "TimeOptB: A Bayesian implementation of TimeOpt that calculates posterior PDFs for precession frequency and sedimentation rate", "topics": [ "timeOptB" ] }, { "page": "timeOptBMCMC", "title": "TimeOptBMCMC: A Bayesian implementation of TimeOpt that calculates posterior PDFs for precession frequency, sedimentation rate, and Solar System g- and s-frequencies, using adaptive MCMC", "topics": [ "timeOptBMCMC" ] }, { "page": "timeOptBMCMCplot", "title": "TimeOptBMCMCplot: Generate summary figures and statistics for TimeOptBMCMC results", "topics": [ "timeOptBMCMCplot" ] }, { "page": "timeOptBSim", "title": "TimeOptBSim: Significance testing via Monte Carlo simulation for TimeOptB", "topics": [ "timeOptBSim" ] }, { "page": "timeOptMCMC", "title": "TimeOptMCMC: A Bayesian implementation of TimeOpt that evaluates eccentricity-related amplitude modulation and bundling in paleoclimate data, with uncertainties via Markov-Chain Monte Carlo", "topics": [ "timeOptMCMC" ] }, { "page": "timeOptPlot", "title": "TimeOptPlot: Generate summary figure for TimeOpt analyses", "topics": [ "timeOptPlot" ] }, { "page": "timeOptSim", "title": "Monte Carlo simulation for TimeOpt", "topics": [ "timeOptSim" ] }, { "page": "timeOptSimPwrLaw", "title": "Monte Carlo simulation for TimeOpt, using power law (1/f) noise", "topics": [ "timeOptSimPwrLaw" ] }, { "page": "timeOptTemplate", "title": "TimeOpt analysis using variable sedimentation models", "topics": [ "timeOptTemplate" ] }, { "page": "timeOptTemplatePlot", "title": "TimeOptTemplatePlot: Generate summary figure for TimeOptTemplate analyses", "topics": [ "timeOptTemplatePlot" ] }, { "page": "timeOptTemplateSim", "title": "Simulations for timeOptTemplate", "topics": [ "timeOptTemplateSim" ] }, { "page": "tones", "title": "Calculate all possible difference and combinations tones", "topics": [ "tones" ] }, { "page": "traceFreq", "title": "Frequency-domain minimal tuning: Use interactive graphical interface to trace frequency drift", "topics": [ "traceFreq" ] }, { "page": "tracePeak", "title": "A tool to interactively trace peak trajectories on plots", "topics": [ "tracePeak" ] }, { "page": "trackFreq", "title": "Frequency-domain minimal tuning: Use interactive graphical interface and sorting to track frequency drift", "topics": [ "trackFreq" ] }, { "page": "trackPeak", "title": "A tool to interactively select points to track peak trajectories on plots", "topics": [ "trackPeak" ] }, { "page": "trim", "title": "Remove outliers from stratigraphic series", "topics": [ "trim" ] }, { "page": "trimAT", "title": "Remove outliers from stratigraphic series", "topics": [ "trimAT" ] }, { "page": "trough", "title": "Identify minima of troughs in series, filter at desired threshold value", "topics": [ "trough" ] }, { "page": "tune", "title": "Tune stratigraphic series", "topics": [ "tune" ] }, { "page": "unbioturb", "title": "Bioturbation removal function following the approach of Liu et al (2021)", "topics": [ "unbioturb" ] }, { "page": "writeCSV", "title": "Write CSV file", "topics": [ "writeCSV" ] }, { "page": "writeT", "title": "Write tab-delimited file", "topics": [ "writeT" ] }, { "page": "wtMean", "title": "Ar/Ar Geochronology: calculate weighted mean age, age uncertainty, and other associated statistics/plots (with interactive graphics for data culling).", "topics": [ "wtMean" ] }, { "page": "xplot", "title": "Generate cross-plot with kernel density estimates on axes", "topics": [ "xplot" ] }, { "page": "zoomIn", "title": "Dynamically explore cross-plot, zoom-in into specified region", "topics": [ "zoomIn" ] } ], "_rundeps": [ "codetools", "doParallel", "dotCall64", "fields", "foreach", "IDPmisc", "iterators", "lattice", "maps", "multitaper", "palinsol", "RColorBrewer", "Rcpp", "spam", "viridisLite" ], "_score": 4.118595365223762, "_indexed": true, "_nocasepkg": "astrochron", "_universes": [ "cran" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.6", "date": "2026-05-26T07:11:37.000Z", "distro": "noble", "arch": "aarch64", "commit": "9ecd5b4e44b488c60a253893a2aec503c4abd10d", "fileid": "420a898c2e460401e098c7ecb94f9d9011a4fd06dc50601568c21331e57bcade", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/26437681276" }, { "r": "4.7.0", "os": "linux", "version": "1.6", "date": "2026-05-26T07:11:43.000Z", "distro": "noble", "arch": "x86_64", "commit": "9ecd5b4e44b488c60a253893a2aec503c4abd10d", "fileid": "1ccd0b045e9e5a86f5e93f4bccf26628a03696f54869926e78529062d852f550", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/26437681276" }, { "r": "4.6.0", "os": "linux", "version": "1.6", "date": "2026-05-26T07:11:28.000Z", "distro": "noble", "arch": "aarch64", "commit": "9ecd5b4e44b488c60a253893a2aec503c4abd10d", "fileid": "52dff39d0400e5d285e89143ba1312dde0bb5d20599e6e7f9483728a948777bd", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/26437681276" }, { "r": "4.6.0", "os": "linux", "version": "1.6", "date": "2026-05-26T07:11:18.000Z", "distro": "noble", "arch": "x86_64", "commit": "9ecd5b4e44b488c60a253893a2aec503c4abd10d", "fileid": "f3fa3984d5a2565a7ee8d9238e744c731efed68261a0a72050f40fcb76bde3ad", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/cran/actions/runs/26437681276" }, { "r": "4.6.0", "os": "wasm", "version": "1.6", "date": "2026-05-26T07:11:26.000Z", "arch": "emscripten", "commit": "9ecd5b4e44b488c60a253893a2aec503c4abd10d", "fileid": "e69bf79165db5088130d627404aaf213cc2cafee9698cab5c8863a209a4947ed", "status": "success", "buildurl": "https://github.com/r-universe/cran/actions/runs/26437681276" } ] }