F14CtoC14

Calculate C14 ages from F14C values of radiocarbon dates.

Provides functions for the calibration of radiocarbon dates, as well as options to calculate different radiocarbon realms (C14 age, F14C, pMC, D14C) and estimating the effects of contamination or local reservoir offsets (Reimer and Reimer 2001 <doi:10.1017/S0033822200038339>). The methods follow long-established recommendations such as Stuiver and Polach (1977) <doi:10.1017/S0033822200003672> and Reimer et al. (2004) <doi:10.1017/S0033822200033154>. This package uses the calibration curves from the data package 'rintcal'.

Maarten Blaauw

rice

Radiocarbon Equations

F14CtoC14 function

<dl><dt>F14C</dt>
<dd>Reported mean of the F14C</dd>
<dt>er</dt>
<dd>Reported error of the F14C. Returns just the mean if left empty.</dd>
<dt>roundby</dt>
<dd>Amount of decimals required for the output. Defaults to <code>roundby=NA</code>, no rounding.</dd>
<dt>lambda</dt>
<dd>The mean-life of radiocarbon (based on Libby half-life of 5568 years).</dd>
<dt>botherrors</dt>
<dd>Since going from C14 to F14C involves a logarithmic transformation (F=exp(-y/lambda)), errors that are symmetric on the C14 scale will become asymmetric on the F14C scale. By default, only the largest error is reported, but if <code>reportbotherrors=TRUE</code>, both errors are reported. #' @return The radiocarbon ages from the F14C values. If F14C values are above 100%, the resulting radiocarbon ages will be negative.</dd></dl>

Arguments

Calculate C14 ages from F14C values. — F14CtoC14

<dl>

<dt>F14C</dt>
<dd>Reported mean of the F14C</dd>


<dt>er</dt>
<dd>Reported error of the F14C. Returns just the mean if left empty.</dd>


<dt>roundby</dt>
<dd>Amount of decimals required for the output. Defaults to <code>roundby=NA</code>, no rounding.</dd>


<dt>lambda</dt>
<dd>The mean-life of radiocarbon (based on Libby half-life of 5568 years).</dd>


<dt>botherrors</dt>
<dd>Since going from C14 to F14C involves a logarithmic transformation (F=exp(-y/lambda)), errors that are symmetric on the C14 scale will become asymmetric on the F14C scale. By default, only the largest error is reported, but if <code>reportbotherrors=TRUE</code>, both errors are reported. #' @return The radiocarbon ages from the F14C values. If F14C values are above 100%, the resulting radiocarbon ages will be negative.</dd>

</dl>

F14CtoC14: Calculate C14 ages from F14C values.

Description

Usage

Arguments

Details

Examples