Relation Incidences

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Description

Determine the incidences of a relation.

Usage

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Arguments

x

an object inheriting from class relation.

...

Further arguments passed to the labeling function used for creating the dimnames of the incidence matrix.

Value

For a k-ary relation, a k-dimensional numeric array with values in the unit interval inheriting from class relation_incidence whose elements give the memberships of the corresponding k-tuples are contained in the relation (for a crisp relation, a binary (0/1) array with elements indicating whether the corresponding tuples are contained in the relation or not).

See Also

relation; relation_incidence<- for modifying the incidences.

Examples

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