intersection: Intersection of two or more sets

In llrs/BaseSet: Working with Sets the Tidy Way

Intersection of two or more sets

Description

Given a TidySet creates a new set with the elements on the both of them following the logic defined on FUN.

Usage

intersection(object, sets, ...)

## S4 method for signature 'TidySet,character'
intersection(
  object,
  sets,
  name = NULL,
  FUN = "min",
  keep = FALSE,
  keep_relations = keep,
  keep_elements = keep,
  keep_sets = keep,
  ...
)

Arguments

object	A TidySet object.
sets	The character of sets to be intersect.
...	Other named arguments passed to FUN.
name	The name of the new set. By defaults joins the sets with an ∪.
FUN	A function to be applied when performing the union. The standard intersection is the "min" function, but you can provide any other function that given a numeric vector returns a single number.
keep	A logical value if you want to keep originals sets.
keep_relations	A logical value if you wan to keep old relations.
keep_elements	A logical value if you wan to keep old elements.
keep_sets	A logical value if you wan to keep old sets.

Details

#' The default uses the min function following the standard fuzzy definition, but it can be changed.

Value

A TidySet object.

Methods (by class)

• intersection(object = TidySet, sets = character): Applies the standard intersection

See Also

Other methods that create new sets: complement_element(), complement_set(), subtract(), union()

Other methods: TidySet-class, activate(), add_column(), add_relation(), arrange.TidySet(), cartesian(), complement_element(), complement_set(), complement(), element_size(), elements(), filter.TidySet(), group_by.TidySet(), group(), incidence(), is.fuzzy(), is_nested(), move_to(), mutate.TidySet(), nElements(), nRelations(), nSets(), name_elements<-(), name_sets<-(), name_sets(), power_set(), pull.TidySet(), relations(), remove_column(), remove_element(), remove_relation(), remove_set(), rename_elements(), rename_set(), select.TidySet(), set_size(), sets(), subtract(), union()

Examples

rel <- data.frame(
    sets = c(rep("A", 5), "B"),
    elements = c("a", "b", "c", "d", "f", "f")
)
TS <- tidySet(rel)
intersection(TS, c("A", "B")) # Default Name
intersection(TS, c("A", "B"), "C") # Set the name
# Fuzzy set
rel <- data.frame(
    sets = c(rep("A", 5), "B"),
    elements = c("a", "b", "c", "d", "f", "f"),
    fuzzy = runif(6)
)
TS2 <- tidySet(rel)
intersection(TS2, c("A", "B"), "C")
intersection(TS2, c("A", "B"), "C", FUN = function(x){max(sqrt(x))})

llrs/BaseSet documentation built on Jan. 28, 2024, 9:05 a.m.