NEWS

rplum 1.0.0 (2025-05-20)

updated to rbacon 3.5.2 (which changes how greyscale images are plotted). Removed temporary code copied from rbacon code that caused issues with plotting.

it is now an error if no radium measurements are provided (ra.case=0) while n.supp is set to 0
through rbacon (version >=3.4.1), posterior values for phi and supported are now provided
to plot depths beyond where background has been reached, use both d.max and remove.tail=FALSE
radiocarbon ages can now be entered as F14C or pMC values (e.g. for postbomb dates). Please indicate using the F14C or pMC option which ones are in F14C/pMC (e.g., Bacon(F14C=2:4) if dates 2 to 4 are in F14C). These values will then automatically be rewritten as C14 ages within the C14 .csv file.
When running Plum as tmp <- Plum(save.info=FALSE), no additional variables beside 'tmp' will be saved in the session. For subsequent calculations, provide 'tmp', e.g. as in Bacon.hist(20:40, set=tmp). The default remains to save an object 'info' to the session, and this object will then be used to make any further calculations using set=get('info').
rbacon 3.4.1 has some issues in draw.pbmodelled (related to plotting bluescale images), PlotSuppPost (should calculate mean(unlist(set$ps)) instead of mean(set$ps)) and agedepth (doesn't place the results of draw.pbmodelled into set). So we're temporally placing updated versions of these functions in the file 'frombacon.R' until the next version of rbacon (probably 3.4.2) is on CRAN.

save.ages has been renamed to save.elbowages (for consistency with rbacon)
'olderthan' and 'youngerthan' ages can now be used (only non-210Pb)
now links to the new 'rice' package
if there are 7 or fewer data points, a warning will be provided (instead of an obscure error). This has to do with there being a need for at least 4 datapoints to estimate background levels

repaired a bug which crashed the session if cc=4 was specified
renamed ccdir to cc.dir
youngest.age and date.sample now work more robustly
rplum now requires at least rbacon's version 3.2.0 (corrects bugs with postbomb dates and with the naming of cc.dir)
renamed the options MinAge and MaxAge to the hopefully less confusing youngest.age and oldest.age

now uses the renamed rintcal package instead of the IntCal package
any non-210Pb dates are now drawn in more predictable colours
in case of hiatuses, plots are now done as expected
tail measurements are now dealt with better (no extrapolation beyond reasonable territory)
information is provided on ballpark accumulation rates and how they compare to the prior settings
If the depths in the dets file appear not be the bottom depths of the slices, this now results in an error

removed closeAllConnections() option as requested by CRAN
if there is only one date in otherdates (e.g., a historical Cs peak), acc.rate isn't set to overly low values any more
added a function to estimate how many iterations will be run and returned

further separation of rbacon and rplum
added LL14, a core with Pb-210, radon and C14 dates (core kindly provided by Dr Lysanna Anderson, USGS)
many sundry bug fixes related mainly to plotting

now depends on the rbacon c++ code instead of carrying a duplicate of the code. Same for many of rbacon's internal functions for plotting etc.
now depends on IntCal package for radiocarbon calibration curves
now only calculates the age-depth model for Pb data that are above background level
enhanced how to take into account different scenarios with radon.case and n.supp

removed vignettes as they threw errors which made the package unacceptable by CRAN

first version of the 'rplum' package, developed from 'pyplum' at https://github.com/maquinolopez