zealand {ade4} | R Documentation

## Road distances in New-Zealand

### Description

This data set gives the road distances between 13 towns in New-Zealand.

### Usage

    data(zealand)

### Format

`zealand` is a list with the following components:

road

  a data frame with 13 rows (New Zealand towns) and 13 columns (New Zealand towns) containing the road distances between these towns

xy

  a data frame containing the coordinates of the 13 towns

neig

  an object of class `neig`, a neighbour graph to visualize the map shape

nb

  a neighborhood object (class `nb` defined in package `spdep`)

### Source

Manly, B.F. (1994). Multivariate Statistical Methods. A primer., Second edition, Chapman and Hall, London, 1–215, page 172.

### Examples

    data(zealand)
    d0 <- as.dist(as.matrix(zealand$road))
    d1 <- cailliez (d0)
    d2 <- lingoes(d0)

    if(adegraphicsLoaded()) {
      G1 <- s.label(zealand$xy, lab = as.character(1:13), nb = zealand$nb)

      g1 <- s.label(cmdscale(dist(zealand$xy)), lab = as.character(1:13), nb = zealand$nb,
        psub.text = "Distance canonique", plot = FALSE)
      g2 <- s.label(cmdscale(d0), lab = as.character(1:13), nb = zealand$nb,
        psub.text = "Distance routiere", plot = FALSE)
      g3 <- s.label(cmdscale(d1), lab = as.character(1:13), nb = zealand$nb,
        psub.text = "Distance routiere / Cailliez", plot = FALSE)
      g4 <- s.label(cmdscale(d2), lab = as.character(1:13), nb = zealand$nb,
        psub.text = "Distance routiere / Lingoes", plot = FALSE)
      G2 <- ADEgS(list(g1, g2, g3, g4), layout = c(2, 2))

    } else {
      s.label(zealand$xy, lab = as.character(1:13), neig = zealand$neig)
      par(mfrow = c(2, 2))
      s.label(cmdscale(dist(zealand$xy)), lab = as.character(1:13),
        neig = zealand$neig, sub = "Distance canonique", csub = 2)
      s.label(cmdscale(d0), lab = as.character(1:13), neig = zealand$neig,
        sub = "Distance routiere", csub = 2)
      s.label(cmdscale(d1), lab = as.character(1:13), neig = zealand$neig,
        sub = "Distance routiere / Cailliez", csub = 2)
      s.label(cmdscale(d2), lab = as.character(1:13), neig = zealand$neig,
        sub = "Distance routiere / Lingoes", csub = 2)
    }

[Package ade4 version 1.7-13 Index]