# Relation Incidences

### Description

Determine the incidences of a relation.

### Usage

1 |

### Arguments

`x` |
an object inheriting from class |

`...` |
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

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