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| astrochron-package | astrochron: A Computational Tool for Astrochronology |
| anchorTime | Anchor a floating astrochronology to a radioisotopic age |
| ar1 | Generate AR(1) surrogates |
| ar1etp | AR(1) + ETP simulation routine |
| arcsinT | Arcsine transformation of stratigraphic series |
| armaGen | Generate autoregressive moving-average model |
| asm | Average Spectral Misfit |
| astrochron | astrochron: A Computational Tool for Astrochronology |
| autoPlot | Automatically plot multiple stratigraphic series, with smoothing if desired |
| bandpass | Bandpass filter stratigraphic series |
| bergerPeriods | Obliquity and precession periods of Berger et al. (1992) |
| cb | Combine multiple vectors |
| clipIt | Create non-linear response by clipping stratigraphic series |
| constantSedrate | Apply a constant sedimentation rate model to transform a spatial series to temporal series |
| cosTaper | Apply cosine taper to stratigraphic series |
| cycles | Generate harmonic model |
| delPts | Interactively delete points in plot |
| demean | Remove mean value from stratigraphic series |
| detrend | Subtract linear trend from stratigraphic series |
| divTrend | Divide by linear trend in stratigraphic series |
| dpssTaper | Apply DPSS taper to stratigraphic series |
| eAsm | Evolutive Average Spectral Misfit |
| eAsmTrack | Track ASM null hypothesis significance level minima in eASM results |
| eha | Evolutive Harmonic Analysis & Evolutive Power Spectral Analysis |
| etp | Generate eccentricity-tilt-precession models |
| extract | Extract record from EHA time-frequency output or eAsm output |
| flip | Flip stratigraphic series |
| freq2sedrate | Convert record of local spatial frequency (from EHA) to sedimentation rate curve |
| gausTaper | Apply Gaussian taper to stratigraphic series |
| getColor | Query R for color information |
| getData | Download file from astrochron data server |
| getLaskar | Download Laskar et al. (2004, 2011a, 2011b) astronomical solutions |
| hannTaper | Apply Hann taper to stratigraphic series |
| headn | List column numbers for each variable |
| hilbert | Hilbert transform of stratigraphic series |
| idPts | Interactively identify points in plot |
| integratePower | Determine the total power within a given bandwidth |
| iso | Isolate data from a specified stratigraphic interval |
| linage | Tune stratigraphic series to an astronomical target using graphical interface |
| linterp | Piecewise linear interpolation of stratigraphic series |
| logT | Log transformation of stratigraphic series |
| lowpass | Lowpass filter stratigraphic series |
| lowspec | Robust Locally-Weighted Regression Spectral Background Estimation |
| modelA | Example stratigraphic model series |
| mtm | Multitaper method spectral analysis |
| mtmAR | Intermediate spectrum test of Thomson et al. (2001) |
| mtmML96 | Mann and Lees (1996) robust red noise MTM analysis |
| mwCor | Calculate moving window correlation coefficient for two stratigraphic series, using a 'dynamic window' |
| mwin | Determine 'dynamic moving window' for stratigraphic series |
| mwStats | 'Dynamic window' moving average, median and standard deviation of stratigraphic series |
| noKernel | Remove Gaussian kernel smoother from stratigraphic series |
| noLow | Fit and remove Lowess smoother from stratigraphic series |
| pad | Pad stratigraphic series with zeros |
| peak | Identify maxima of peaks in series, filter at desired threshold value |
| periodogram | Simple periodogram |
| pl | Set up plots |
| plotEha | Create color time-frequency plots from eha results. |
| plS | Set default plotting parameters for vertical stratigraphic plots |
| prewhiteAR | Prewhiten stratigraphic series with autoregressive filter, order selected by Akaike Information Criterion |
| prewhiteAR1 | Prewhiten stratigraphic series with AR1 filter, using 'standard' or unbiased estimate of rho |
| rankSeries | Create lithofacies rank series from bed thickness data |
| read | Read data from file |
| readMatrix | Read data matrix from file |
| repl0 | Replace values < 0 with 0 |
| replEps | Replace values <= 0 with smallest positive value |
| resample | Resample stratigraphic series |
| rmNA | Remove stratigraphic levels that contain one or more NAs |
| s | Standardize variable in stratigraphic series |
| sedRamp | Apply 'ramping' sedimentation rate model to convert time to stratigraphy |
| sedrate2time | Integrate sedimentation rate curve to obtain time-space map |
| slideCor | Identify optimal spatial/temporal shift to maximize correlation between two stratigraphic series. |
| sortNave | Remove missing entries, sort data, average duplicates |
| stepHeat | Ar/Ar Geochronology: Generate an Ar/Ar age spectrum and calculate step-heating plateau age. |
| strats | Summary statistics for stratigraphic series |
| surrogateCor | Estimate correlation coefficient and significance for serially correlated data |
| surrogates | Generate phase-randomized surrogate series as in Ebisuzaki (1997) |
| taner | Apply Taner bandpass or lowpass filter to stratigraphic series |
| testPrecession | Astrochronologic testing via the amplitude modulation approach of Zeeden et al. (2015). |
| timeOpt | TimeOpt: Evaluation of eccentricity-related amplitude modulation and bundling in paleoclimate data |
| timeOptPlot | TimeOptPlot: Generate summary figure for TimeOpt analyses |
| timeOptSim | Monte Carlo simulation for TimeOpt |
| tones | Calculate all possible difference and combinations tones |
| traceFreq | Frequency-domain minimal tuning: Use interactive graphical interface to trace frequency drift |
| trackFreq | Frequency-domain minimal tuning: Use interactive graphical interface and sorting to track frequency drift |
| trim | Remove outliers from stratigraphic series |
| trimAT | Remove outliers from stratigraphic series |
| trough | Identify minima of troughs in series, filter at desired threshold value |
| tune | Tune stratigraphic series |
| writeCSV | Write CSV file |
| writeT | Write tab-delimited file |
| wtMean | Ar/Ar Geochronology: calculate weighted mean age, age uncertainty, and other associated statistics/plots (with interactive graphics for data culling). |
| xplot | Generate cross-plot with density estimates on axes |
| zoomIn | Dynamically explore cross-plot, zoom-in into specified region |