Custom curve

[TheKallehk]

Hi!

I have been trying to add a custom bomb calibration curve to use with oxcal. Is there instructions anywhere on how to do this? I haven't found any. Also, what should the file format be? Date, F14C, F14C sigma ?

Thanks

Karl Håkansson

[Christopher Ramsey]

The format is covered in:

https://c14.arch.ox.ac.uk/oxcalhelp/hlp_analysis_file.html

Essentially to generate a new curve file you

. go to [ File > Manager ]
. look under the "Curves" section and press the (+) New button.
. paste in the text data (see above or an existing standard version)
. press [Save] and give it a name

Within your model you can then use:

. [File > Insert]
. select the curve that you want and press [Insert]

That will put the curve into the model. For bomb work you will also wish to set the resolution to 1 or less (typically 0.2) to do this do:

. [ Tools > Options ]
. Enter 1 or 0.25 etc in the Resolution box and press [Ok]

Dates would normally be entered as R_F14C so you should then have a model which looks something like:

Options()
{
Resolution=0.2;
};
Plot()
{
Curve("Bomb21NH1","bomb21nh1.14c");
R_F14C(1.003,0.003);
};

with your curve replacing the standard one.

Best wishes

Christopher

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[Karl Håkansson]

Thank you Christopher!

Apparently I am not good at searching ... now everything works!

Kind regards
Karl Håkansson

Ps. The links "View OxCal announcements" and "Visit OxCal discussion
group" on https://c14.arch.ox.ac.uk/oxcal.html is not working.
".co.uk/group/" need changing to ".com/g/".