atya {ade4} | R Documentation

## Genetic variability of Cacadors

### Description

This data set contains information about genetic variability of Atya innocous and Atya scabra in Guadeloupe (France).

### Usage

    data(atya)

### Format

`atya` is a list with the following components:

xy

  a data frame with the coordinates of the 31 sites

gen

  a data frame with 22 variables collected on 31 sites

neig

  an object of class `neig`

nb

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

### Source

Fievet, E., Eppe, F. and Dolédec, S. (2001) Etude de la variabilité morphométrique et génétique des populations de Cacadors (Atya innocous et Atya scabra) de l'île de Basse-Terre. Direction Régionale de L'Environnement Guadeloupe, Laboratoire des hydrosystèmes fluviaux, Université Lyon 1.

### Examples

    ## Not run:
    data(atya)
    if(requireNamespace("pixmap", quietly = TRUE)) {
      atya.digi <- pixmap::read.pnm(system.file("pictures/atyadigi.pnm",
          package = "ade4"))
      atya.carto <- pixmap::read.pnm(system.file("pictures/atyacarto.pnm",
          package = "ade4"))
      par(mfrow = c(1, 2))
      pixmap:::plot(atya.digi)
      pixmap:::plot(atya.carto)
      points(atya$xy, pch = 20, cex = 2)
    }
    if(requireNamespace("spdep", quietly = TRUE)) {
      plot(neig2nb(atya$neig), atya$xy, col = "red", add = TRUE, lwd = 2)
      par(mfrow = c(1,1))
    }

    ## End(Not run)

[Package ade4 version 1.7-13 Index]