Calculate the irradiation parameter ('J factor')

Description

Interpolate the irradiation parameters for the samples given the 40Ar*/39ArK ratios of the samples and fluence monitors

Usage

getJfactors(R)

Arguments

Value

an object of class redux containing, as intercepts, the 40Ar*/39ArK ratios of the samples, the interpolated J-factors, and the 40K decay constant; and as covmat: the covariance matrix. All other class properties are inherited from R.

Examples

data(Melbourne)
R <- get4039(Melbourne$X,Melbourne$irr)
J <- getJfactors(R)
plotcorr(J)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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Type 'license()' or 'licence()' for distribution details.

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Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(ArArRedux)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/ArArRedux/getJfactors.Rd_%03d_medium.png", width=480, height=480)
> ### Name: getJfactors
> ### Title: Calculate the irradiation parameter ('J factor')
> ### Aliases: getJfactors
> 
> ### ** Examples
> 
> data(Melbourne)
> R <- get4039(Melbourne$X,Melbourne$irr)
> J <- getJfactors(R)
> plotcorr(J)
Warning message:
In stats::cov2cor(X$covmat) :
  diag(.) had 0 or NA entries; non-finite result is doubtful
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>