massfractionation
(Package: ArArRedux) :
Apply the mass fractionation correction
Applies the fractionation obtained from air shot data by fractionation to the denominator detector in order to correct it for the mass difference between the numerator and denominator isotopes.
● Data Source:
CranContrib
● Keywords:
● Alias: massfractionation
●
1 images
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concat
(Package: ArArRedux) :
Merge a list of logratio data
Recursively concatenates a list of logratio data into one big dataset
● Data Source:
CranContrib
● Keywords:
● Alias: concat
●
0 images
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fractionation
(Package: ArArRedux) :
Compute the mass fractionation correction
Compares the measured 40Ar/36Ar ratio of an air shot on a given detector with the atmospheric ratio.
● Data Source:
CranContrib
● Keywords:
● Alias: fractionation
●
0 images
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getmasses
(Package: ArArRedux) :
Select a subset of isotopes from a dataset
Extracts the intercepts, covariance matrix, etc. of a selection of isotopes from a larger dataset
● Data Source:
CranContrib
● Keywords:
● Alias: getmasses, getmasses.default, getmasses.logratios, getmasses.timeresolved
●
1 images
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getJfactors
(Package: ArArRedux) :
Calculate the irradiation parameter ('J factor')
Interpolate the irradiation parameters for the samples given the 40Ar*/39ArK ratios of the samples and fluence monitors
● Data Source:
CranContrib
● Keywords:
● Alias: getJfactors
●
1 images
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decaycorrection
(Package: ArArRedux) :
Correct for radioactive decay occurred since irradiation
Correct for radioactive decay of neutron-induced 37Ar and 39Ar occurred since irradiation
● Data Source:
CranContrib
● Keywords:
● Alias: decaycorrection
●
1 images
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param
(Package: ArArRedux) :
Set or get Ar-Ar_Redux parameters
This function is used to query and modify the half lives, standard ages etc. associated with an object of class redux
● Data Source:
CranContrib
● Keywords:
● Alias: param
●
0 images
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fitlogratios
(Package: ArArRedux) :
Extrapolation to 'time zero'
This function extrapolates time resolved mass spectrometer data to t=0. When fed with multicollector data, it forms the ratios of the raw signals, forms their logs and performs linear regression to t=0 When fed with single collector data, the function first takes their logs and extrapolates them to t=0 before taking ratios, unless denmass=NULL, in which case the logs of the raw signals are extrapolated.
● Data Source:
CranContrib
● Keywords:
● Alias: fitlogratios, fitlogratios.PHdata, fitlogratios.default, fitlogratios.timeresolved
●
1 images
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interference
(Package: ArArRedux) :
define the interference corrections
create a new object of class logratios containing the interferences from neutron reactions on Ca and K
● Data Source:
CranContrib
● Keywords:
● Alias: interference
●
0 images
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averagebyday
(Package: ArArRedux) :
Average all the data collected on the same day.
This function is useful for grouping a number of replicate air shots or calibration experiments
● Data Source:
CranContrib
● Keywords:
● Alias: averagebyday
●
1 images
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providing 
.