ade4: corvus – R documentation

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corvus

Corvus morphology

Description

This data set gives a morphological description of 28 species of the genus Corvus split in two habitat types and phylogeographic stocks.

Usage

data(corvus)

Format

corvus is data frame with 28 observations (the species) and 4 variables :

wing: : wing length (mm)
bill: : bill length (mm)
habitat: : habitat with two levels clos and open
phylog: : phylogeographic stock with three levels amer(America), orien(Oriental-Australian), pale(Paleoarctic-African)

References

Laiolo, P. and Rolando, A. (2003) The evolution of vocalisations in the genus Corvus: effects of phylogeny, morphology and habitat. Evolutionary Ecology, 17, 111–123.

Examples

data(corvus)

if(adegraphicsLoaded()) {
  g1 <- s.label(corvus[, 1:2], plab.cex = 0, porigin.include = FALSE, pgrid.draw = FALSE, 
    paxes.draw = TRUE, paxes.asp = "full", xlab = names(corvus)[2], 
    ylab = names(corvus)[2], plot = FALSE)
  g2 <- s.class(corvus[, 1:2], corvus[, 4]:corvus[, 3], plot = FALSE)
  G <- superpose(g1, g2, plot = TRUE)

} else {
  plot(corvus[, 1:2])
  s.class(corvus[, 1:2], corvus[, 4]:corvus[, 3], add.p = TRUE)
}

ade4

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

v1.7-16

GPL (>= 2)

Authors

Stéphane Dray <stephane.dray@univ-lyon1.fr>, Anne-Béatrice Dufour <anne-beatrice.dufour@univ-lyon1.fr>, and Jean Thioulouse <jean.thioulouse@univ-lyon1.fr>, with contributions from Thibaut Jombart, Sandrine Pavoine, Jean R. Lobry, Sébastien Ollier, Daniel Borcard, Pierre Legendre, Stéphanie Bougeard and Aurélie Siberchicot. Based on earlier work by Daniel Chessel.

Initial release