QUB | Archaeology and Palaeoecology | The 14Chrono Centre

Manual for psimpoll and pscomb

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Menu N: confidence intervals

Menu N1: fine-scale variation
For accumulation rate data (`b' in input Item 4) only, the program prompts for a sample standard deviation of the rate of sediment accumulation over the very short time periods for accumulation of the sediment thickness represented in individual samples. This value is completely unknowable, but some assumptions can be made. The default is 30% of the calculated sediment accumulation rate. You can accept this, enter another value, or disable it by entering 0.

[Allowed range 0-1]

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