distance: Compute the distance between permutations

In PerMallows: Permutations and Mallows Distributions

Description

Compute the distance between two given permutations. If only one permutation is given the other one is assumed to be the identity (1,2,3,....,n) The distance can be kendall, cayley, hamming and ulam

Usage

distance(perm1, perm2 = identity.permutation(length(perm1)),
  dist.name = "kendall")

Arguments

perm1	a permutation
perm2	optional a permutation
dist.name	optional. One of: kendall (default), cayley, hamming, ulam

Value

The distance between the permutations

Examples

distance(c(1,2,3,5,4))
distance(c(1,2,3,5,4), c(1,2,3,5,4))
distance(c(1,2,3,5,4), c(1,4,2,3,5), "cayley")

Example output

Loading required package: Rcpp
[1] 1
[1] 0
[1] 3

PerMallows documentation built on May 2, 2019, 6:14 a.m.