allen.relation: Allen relation of two definite intervals

In tsdye/allen.archaeology: Allen\'s Interval Algebra for Archaeologists

Allen relation of two definite intervals

Description

Calculates the Allen relation of two definite intervals and reports the one-letter code for the interval proposed by Thomas Alspaugh. Stops with an error if the end of an interval is earlier than its start.

Usage

allen.relation(start.1, end.1, start.2, end.2)

Arguments

start.1	The start date of the first interval
end.1	The end date of the first interval
start.2	The start date of the second interval
end.2	The end date of the second interval

Value

A one-letter code indicating the Allen relation

Author(s)

Thomas S. Dye

tsdye/allen.archaeology documentation built on April 6, 2023, 10:12 a.m.