Last data update: 2014.03.03

ArArRedux
Package: ArArRedux
Title: Rigorous Data Reduction and Error Propagation of Ar40 / Ar39
Data
Version: 0.2
Authors@R: person("Pieter", "Vermeesch", , "p.vermeesch@ucl.ac.uk", role = c("aut", "cre"))
Description: Processes noble gas mass spectrometer data to determine the isotopic composition of argon (comprised of Ar36, Ar37, Ar38, Ar39 and Ar40) released from neutronirradiated potassiumbearing minerals. Then uses these compositions to calculate precise and accurate geochronological ages for multiple samples as well as the covariances between them. Error propagation is done in matrix form, which jointly treats all samples and all isotopes simultaneously at every step of the data reduction process. Includes methods for regression of the timeresolved mass spectrometer signals to t=0 ('time zero') for both single and multicollector instruments, blank correction, mass fractionation correction, detector intercalibration, decay corrections, interference corrections, interpolation of the irradiation parameter between neutron fluence monitors, and (weighted mean) age calculation. All operations are performed on the logs of the ratios between the different argon isotopes so as to properly treat them as 'compositional data', sensu Aitchison [1986, The Statistics of Compositional Data, Chapman and Hall].
Author: Pieter Vermeesch [aut, cre]
Maintainer: Pieter Vermeesch <p.vermeesch@ucl.ac.uk>
Depends: R (>= 3.0.2)
Imports: utils, stats, methods, graphics, grDevices
License: GPL2
LazyData: true
Packaged: 20150826 15:03:28 UTC; pvermees
NeedsCompilation: no
Repository: CRAN
Date/Publication: 20150826 23:00:14
Install log
* installing to library '/home/ddbj/local/lib64/R/library'
* installing *source* package 'ArArRedux' ...
** package 'ArArRedux' successfully unpacked and MD5 sums checked
** R
** data
*** moving datasets to lazyload DB
** inst
** preparing package for lazy loading
** help
*** installing help indices
converting help for package 'ArArRedux'
finding HTML links ... done
Melbourne html
PHdata html
average html
averagebyday html
blankcorr html
blankcorrected html
calibration html
clcorrection html
concat html
decaycorrection html
fitlogratios html
fractionation html
get4039 html
getJfactors html
getages html
getmasses html
interference html
loaddata html
loadirradiations html
logratios html
massfractionation html
newredux html
param html
plot html
plotcorr html
process html
read html
redux html
results html
subset html
summary html
timeresolved html
weightedmean html
** building package indices
** testing if installed package can be loaded
* DONE (ArArRedux)
Making 'packages.html' ... done
