Learn R Programming

⚠️There's a newer version (6.7) of this package.Take me there.

IsoplotR

IsoplotR is a free and open-source substitute for Kenneth Ludwig's popular Isoplot add-in to Microsoft Excel. This Github repository contains the code for IsoplotR's core commands. A graphical user interface is provided in a separate repository at https://github.com/pvermees/IsoplotRgui.

Prerequisites

You must have R installed on your system (see http://r-project.org). Additionally, to install IsoplotR from Github, you also need the devtools package. This can be installed by typing the following code at the R command line prompt:

install.packages('devtools')

Installation

The most recent stable version of IsoplotR is available from CRAN at https://cran.r-project.org/package=IsoplotR and can be installed on your system as follows:

install.packages('IsoplotR')

Alternatively, to install the current development version of IsoplotR from Github, type:

library(devtools)
install_github('pvermees/IsoplotR')

Further information

See http://isoplotr.london-geochron.com

Vermeesch, P., 2018, IsoplotR: a free and open toolbox for geochronology. Geoscience Frontiers, doi: 10.1016/j.gsf.2018.04.001 (in press).

Author

Pieter Vermeesch

License

This project is licensed under the GPL-3 License

Copy Link

Version

Install

install.packages('IsoplotR')

Monthly Downloads

1,040

Version

1.3

License

GPL-3

Maintainer

Pieter Vermeesch

Last Published

June 4th, 2018

Functions in IsoplotR (1.3)

york

Linear regression of X,Y-variables with correlated errors
titterington

Linear regression of X,Y,Z-variables with correlated errors
isochron

Calculate and plot isochrons
weightedmean

Calculate the weighted mean age
IsoplotR

library(IsoplotR)
ellipse

Get coordinates of error ellipse for plotting
agespectrum

Plot a (40Ar/39Ar) release spectrum
central

Calculate U-Th-He and fission track central ages and compositions
age

Calculate isotopic ages
evolution

Th-U evolution diagram
concordia

Concordia diagram
IsoplotR-internal

Internal code objects
cad

Plot continuous data as cumulative age distributions
examples

Example datasets for testing IsoplotR
ludwig

Linear regression of U-Pb data with correlated errors, taking into account decay constant uncertainties.
helioplot

Visualise U-Th-He data on a logratio plot or ternary diagram
set.zeta

Calculate the zeta calibration coefficient for fission track dating
kde

Create (a) kernel density estimate(s)
mds

Multidimensional Scaling
radialplot

Visualise heteroscedastic data on a radial plot
peakfit

Finite mixture modelling of geochronological datasets
settings

Load settings to and from json
read.data

Read geochronology data