In a study of lizard behaviour, characteristics of 409 lizards were recorded, namely species (S), perch diameter (D) and perch height (H). Perch means preferred place to settle down (a branch on a tree). The focus of interest is in how the propensities of the lizards to choose perch height and diameter are related, and whether and how these depend on species.
data
Format
A 3--dimensional array with factors diam: "<=4" ">4" height: ">4.75" "<=4.75" species: "anoli" "dist"
data(lizard)
Examples
data(lizard)# Datasets lizardRAW and lizardDF are generated with the following code#lizardAGG <- as.data.frame(lizard)#f <- lizardAGG$Freq#idx <- unlist(mapply(function(i, n) rep(i, n), 1:8, f))#set.seed(0805)#idx <- sample(idx)#lizardRAW <- as.data.frame(lizardAGG[idx, 1:3])#rownames(lizardRAW) <- 1:NROW(lizardRAW)
References
Schoener TW (1968) The anolis lizards of bimini: Resource partitioning in a complex fauna. Ecology 49:704-726