sarcelles: Array of Recapture of Rings

In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

Array of Recapture of Rings

Description

The data frame sarcelles$tab contains the number of the winter teals (Anas C. Crecca) for which the ring was retrieved in the area i during the month j (n=3049).

Usage

data(sarcelles)

Format

sarcelles is a list with the following components:

tab

a data frame with 14 rows-areas and 12 columns-months

xy

a data frame with the 2 spatial coordinates of the 14 region centers

neig

the neighbouring graph between areas, object of the class neig

col.names

a vector containing the month items

nb

a neighborhood object (class nb defined in package spdep)

Source

Lebreton, J.D. (1973). Etude des déplacements saisonniers des Sarcelles d'hiver, Anas c. crecca L., hivernant en Camargue à l'aide de l'analyse factorielle des correspondances. Compte rendu hebdomadaire des séances de l'Académie des sciences, Paris, D, III, 277, 2417–2420.

Examples

## Not run: 
if(!adegraphicsLoaded()) {
  # depends of pixmap
  if(requireNamespace("pixmap", quietly = TRUE)) {
    bkgnd.pnm <- pixmap::read.pnm(system.file("pictures/sarcelles.pnm", package = "ade4"))
    data(sarcelles)
    par(mfrow = c(4, 3))
    for(i in 1:12) {
      s.distri(sarcelles$xy, sarcelles$tab[, i], pixmap = bkgnd.pnm, 
       sub = sarcelles$col.names[i], clab = 0, csub = 2)
      s.value(sarcelles$xy, sarcelles$tab[, i], add.plot = TRUE, cleg = 0)
    }
    par(mfrow = c(1, 1))
  }
}
## End(Not run)

ade4 documentation built on Feb. 16, 2023, 7:58 p.m.