age(x, ...)
"age"(x, method = "Pb206U238", dcu = TRUE, ...)
"age"(x, concordia = 1, wetherill = TRUE, dcu = TRUE, i = NA, ...)
"age"(x, ...)
"age"(x, isochron = FALSE, dcu = TRUE, i = NA, ...)UPb or detritals.'Pb206U238', 'Pb207U235',
or 'Pb207Pb206'concordia=1), a
concordia age should be calculated from all U-Pb analyses
together (concordia=2), or a discordia line should be
fit through all the U-Pb analyses (concordia=2).TRUE) or Tera-Wasserburg
(FALSE) space. This option is only used when
concordia=2isochron=FALSE) or an
isochron age should be calculated from all Ar-Ar analyses
together (isochron=TRUE).x is a scalar or a vector, returns the age using
the geochronometer given by method and its standard
error.if x has class UPb and concordia=1, returns a
table with the following columns: `t.75', `err[t.75]', `t.68',
`err[t.68]', `t.76',`err[t.76]', `t.conc', `err[t.conc]',
containing the 207Pb/235U-age and standard error, the
$^{206}$Pb/$^{238}$U-age and standard error, the
$^{207}$Pb/$^{206}$ Pb-age and standard error, and the
concordia age and standard error, respectively.if x has class UPb and concordia=2, returns a
list with the following items:equivalence and
concordance) containing the MSWD (Mean of the Squared
Weighted Deviates, a.k.a the reduced Chi-squared statistic outside
of geochronology) of isotopic equivalence and age concordance,
respectively. equivalence and
concordance) containing the p-value of the Chi-square test
for isotopic equivalence and age concordance, respectively. x has class UPb and concordia=3, returns a
list with the following items:x data(examples)
print(age(examples$UPb))
print(age(examples$UPb,concordia=1))
print(age(examples$UPb,concordia=2))
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