Cardinality or membership of sets

Calculates the membership of sets according to the logic defined in FUN.

Usage

cardinality(object, sets = NULL, ...)

# S4 method for class 'TidySet'
cardinality(object, sets, FUN = "sum", ...)

Arguments

object

A TidySet object.

sets

Character vector with the name of the sets.

...

Other arguments passed to FUN.

FUN

Function that returns a single numeric value given a vector of fuzzy values.

Methods (by class)

• cardinality(TidySet): Cardinality of sets

See also

size()

Examples

rel <- list(A = letters[1:3], B = letters[1:2])
TS <- tidySet(rel)
cardinality(TS, "A")
#>   sets cardinality
#> 1    A           3