rbacon (version 2.3.3)

Bacon.hist: Calculate age distributions of depths.

Description

Calculate the distribution of age estimates of single or multiple depths.

Usage

Bacon.hist(d, set = get("info"), BCAD = set$BCAD, yr.lab = c(),
  yr.lim = c(), hist.lab = "Frequency", hist.lim = c(), draw = TRUE,
  prob = set$prob, hist.col = grey(0.5), hist.border = grey(0.2),
  range.col = "blue", med.col = "green", mean.col = "red")

Arguments

d

The depth or depths for which a histogram and age ranges should be provided. If multiple depths are given, then just the age ranges, median and means (no graphs) are provided for each depth.

set

Detailed information of the current run, stored within this session's memory as variable info.

BCAD

The calendar scale of graphs and age output-files is in cal BP by default, but can be changed to BC/AD using BCAD=TRUE.

yr.lab

The labels for the calendar axis (default yr.lab="cal BP" or "BC/AD" if BCAD=TRUE).

yr.lim

Minimum and maximum calendar age ranges, calculated automatically by default (yr.lim=c()).

hist.lab

The y-axis is labelled ylab="Frequency" by default.

hist.lim

Limits of the y-axis.

draw

Draw a plot or not. Defaults to draw=TRUE, however no plots are made if more than one depth d is provided. If draw=FALSE, then the age ranges, median and mean are given for each depth (as four columns).

prob

Age ranges are given as quantiles, e.g., 2.5% and 97.5% for the default of 95% confidence limits (prob=0.95)).

hist.col

Colour of the histogram. Default grey, hist.col=grey(0.5).

hist.border

Colour of the histogram's outline. Default dark grey, hist.border=grey(0.2).

range.col

Colour of confidence ranges. Defaults to range.col="blue".

med.col

Colour of the median. Defaults to med.col="green".

mean.col

Colour of the mean. Defaults to mn.col="red".

Value

A plot with the histogram and the age ranges, median and mean, or just the age ranges, medians and means if more than one depth d is given.

Details

Age estimates of specific depths can also be plotted.

References

Blaauw, M. and Christen, J.A., Flexible paleoclimate age-depth models using an autoregressive gamma process. Bayesian Anal. 6 (2011), no. 3, 457--474. https://projecteuclid.org/download/pdf_1/euclid.ba/1339616472

See Also

http://www.chrono.qub.ac.uk/blaauw/manualBacon_2.3.pdf

Examples

# NOT RUN {
  Bacon(run=FALSE, coredir=tempfile())
  agedepth(yr.res=50)
  Bacon.hist(20) 
  Bacon.hist(20:30) 
# }