in {hset}

Parametrized inclusion predicate between a member and an "hset" object

Description

TRUE is returned when the argument member is included in the set (or multiset) hset, otherwise FALSE is returned.

Usage

inclusion.member(member, hset, multiplicity = 1L, type.relation = `<=`)
member %in% hset # default for multiplicity and type.relation

Arguments

member

vector of length 1 that, when converted to a "character", labels the element that can be included in the set.

hset

object of class "hset" that could contain member.

multiplicity

how many times member is inclued in hset.

type.relation

one of the six binary relational operator, e.g., <.

Details

Arguments multiplicity and type.relation used only when argument hset is generalized.

Value

TRUE is returned if member and hset are in relation, otherwise FALSE is returned.

Examples

inclusion.member(2, hset(c(2,3))) 
2 %in% hset(c(2,3))
inclusion.member(1, hset(c(2,3))) # 1 %in% hset(c(2,3))

inclusion.member(2, hset(c(2,3), generalized = TRUE))
inclusion.member(2, hset(c(2,3), c(.5, 1))) # default multiplicity is 1
inclusion.member(2, hset(c(2,3), c(.5, 1)), .5)
inclusion.member(2, hset(c(2,3), c(.5, 1)), .5, `<`) # strict inclusion