OxCal

Dear Bob Yes - I think that would be hard to manage. The interpolation process tries to even up the

Hi Lu-Wen Liu, I would take a look at the sequence of when the samples were harvested. For example,

Hello Rob, It is a bit complicated but can be done by manipulating the OxCal output. There are two

Hello all! I recently ran into an issue where a model returned the "Warning! Poor agreement

Dear Michael Yes - you can do this in OxCal. Use the [ View > Plot stacks ] function from the

Thank you very much. Christopher Ramsey schrieb am Dienstag, 11. November 2025 um 14:02:14 UTC+1: For

Dear Chris Yes - the negative numbers imply that the events might be in the other order (presumably

Dear Brett, Perhaps you can explain a bit more what you are aiming to calculate. What are you hoping

Thanks a lot, Andrew. You really helped me! El jueves, 30 de octubre de 2025 a la(s) 11:39:59 am UTC-

Christopher Thank you so much! I had misinterpreted the help webpage 'tree ring sequence'

Hi Chris, From your description it seems that all the chronological information about this cremation

Apologies for the delay in replying to all of the above. All very helpful comments as usual.

Thanks Christopher! I will go back and take another look at those papers. -Erik On Tuesday, October 7

Thanks Andrews, helpful as always! – Erik On Tuesday, October 7, 2025 at 5:12:27 AM UTC-3 MILLARD,

On Wednesday, October 1, 2025 at 4:43:53 PM UTC-7 Morley Eldridge wrote: The other sets of samples

Thank you for the clarification. On Wed, Oct 1, 2025, 12:09 AM 'Derek Hamilton' via OxCal

Hi Sarah, Those are both identical ways of coding that phase, but the multiple runs of the same code

Dear both The only caveat with this is that it assumes the offset is the same for the different

Span and interval are often similar: Span is the span of the events actually given in the model

This will be because in general OxCal takes astronomical year dates as the input. There is more

Hi Kelly – 1. You can do a single P_Sequence and change the ΔR midway (see code below). R_Dates will

Dear John and Erik, Ok, now I had time to check out the model results. First, I ran V_Sequence models

Hi Chris – the Last command works as a query, not a prior. Instead, I would try making a sequence out

Thanks John, Yes, I think there must be some residuality here. Chris On Thursday, 31 July 2025 at 21:

Hi all, I'm a beginner using OxCal to model two sediment cores and I could really use some

Dear Xiannong, I've attempted to answer your questions below For my modern sample at 30 cm depth

i am running a age depth model and i want to estimate duration of each phase and sedimentation rate.

Many thanks – I found the previous discussion about this and Christophers spreadsheet. Fiona From:

Dear Fredrik and Christopher, thank you so much for your help! I've managed to do it :) Have a

It should be: Plot() { R_Date( "COW02",3030,60); Offset( 65, 0); }; Best wishes Christopher