relations (version 0.2-0)

incidence: Relation Incidences

Description

Determine the incidences of a relation.

Usage

relation_incidence(x)

Arguments

x

an object inheriting from class relation.

Value

• For a $k$-ary relation, a $k$-dimensional 0/1 array inherting from class relation_incidence whose elements indicate whether the corresponding $k$-tuples are contained in the relation or not.

See Also

relation; relation_incidence<- for modifying the incidences.

Examples

R <- as.relation(c(A = 1, B = 2, C = 3))
relation_incidence(R)