Data for an Illustrative Graphic

Create a data frame that can be used as input for an illustrative plot. Useful for describing the Allen operators: illustrate the full set of Allen relations, concurrent Allen relations, and relations with distinct endpoints. Also, useful for describing the chronological domains of stratification, branching, transformation, and reticulation.

Usage

allen_illustrate_relations(relations = "basic")

Arguments

relations

A character string specifying the relation. It must be one of "basic", "concurrent", "distinct", "stratigraphic", "branching", "transformation", "reticulation", "sequence", "branch", "transform", or "reticulate" (see details).

Value

A data.frame to be passed to allen_plot().

Details

The illustrative graphics include:

basic

the 13 basic Allen relations (default);

concurrent

concurrent relations;

distinct

relations with distinct endpoints;

stratigraphic

basic relations established by an observation of superposition;

branching

basic branching relations;

transformation

basic relations of transformation;

reticulation

basic relations of reticulation;

sequence

composite relations in a stratigraphic sequence;

branch

composite relations of branching;

transform

composite relations of transformation; or

reticulate

composite relations of reticulation.

See also

Other Allen's intervals: allen_analyze(), allen_analyze_relations(), allen_complement(), allen_composition(), allen_converse(), allen_illustrate(), allen_intersect(), allen_joint_concurrency(), allen_observe(), allen_observe_frequency(), allen_plot(), allen_relation(), allen_relation_code(), allen_union()

Author

T. S. Dye