poseticDataAnalysis (version 1.0.0)

CoverMatrix: Computing the cover matrix of a poset.

Description

Computes the cover matrix of the input poset.

Usage

CoverMatrix(poset)

Value

A square boolean matrix \(C\) (\(C[i,j]=TRUE\) if and only if the \(j\)-th element of the input poset covers the \(i\)-th).

Arguments

poset

An object of S4 class POSet. Argument poset must be created by using any function contained in the package aimed at building object of S4 class POSet (e.g. POSet(), LinearPOSet(), ProductPOSet(), ...) .

Examples

elems <- c("a", "b", "c", "d")

dom <- matrix(c(
  "a", "b",
  "c", "b",
  "b", "d"
), ncol = 2, byrow = TRUE)

pos <- POSet(elements = elems, dom = dom)

C <- CoverMatrix(pos)