c14_spd {ananke} | R Documentation |
Summed Probability Distributions
Description
Computes summed probability distributions (SPD) of radiocarbon dates.
Usage
c14_spd(object, ...)
## S4 method for signature 'CalibratedAges'
c14_spd(object, normalize_date = FALSE, normalize_spd = FALSE)
Arguments
object |
A |
... |
Currently not used. |
normalize_date |
A |
normalize_spd |
A |
Details
Summed probability distributions (SPD) are not statistically valid estimators of the calendar age of a potential future sample. They should not be used in any dates-as-data approach to provide a population proxy.
Value
A CalibratedSPD
object.
Author(s)
N. Frerebeau
See Also
Other radiocarbon tools:
F14C
,
c14_calibrate()
,
c14_combine()
,
c14_curve()
,
c14_ensemble()
,
c14_plot
,
c14_sample()
,
c14_uncalibrate()
,
rec_plot
Examples
## Radiocarbon data from Bosch et al. 2015
data("ksarakil")
## Calibrate
cal <- c14_calibrate(
values = ksarakil$date,
errors = ksarakil$error,
names = ksarakil$code,
curves = "marine13",
reservoir_offsets = 53,
reservoir_errors = 43,
from = 50000, to = 0
)
plot(cal, level = 0.68)
## SPD
s <- c14_spd(cal)
plot(s)
[Package ananke version 0.1.0 Index]