R/data-lizard_habitat.R

In openintro: Data Sets and Supplemental Functions from 'OpenIntro' Textbooks and Labs

#' Field data on lizards observed in their natural habitat
#'
#' Data on here lizard was observed and the level of sunlight.
#' The data are collected on *Sceloporus occidentalis* (western fence lizards)
#' by Stephen C. Adolph in 1983 (in desert and mountain sites) and
#' by Dee Asbury in 2002-3 (in valley site).
#'
#' @name lizard_habitat
#' @docType data
#' @format A data frame with 332 observations on the following 2 variables.
#' \describe{
#'   \item{site}{Site of lizard observation: `desert`, `mountain`, or `valley`.}
#'   \item{sunlight}{Sunlight level at time of observation:
#'   `sun` (lizard was observed perching in full sunlight),
#'   `partial` (lizard was observed perching with part of its body in the sun, part in the shade),
#'   `shade`(lizard was observed perching in the shade).}
#' }
#' @source Adolph, S. C. 1990. Influence of behavioral thermoregulation on
#' microhabitat use by two Sceloporus lizards.  Ecology 71: 315-327.
#' Asbury, D.A., and S. C. Adolph. 2007.  Behavioral plasticity in an ecological
#' generalist: microhabitat use by western fence lizards.
#' Evolutionary Ecology Research 9:801-815.
#' @keywords datasets
#' @examples
#' library(ggplot2)
#'
#' # Frequencies
#' table(lizard_habitat)
#'
#' # Stacked bar plots
#' ggplot(lizard_habitat, aes(y = site, fill = sunlight)) +
#'   geom_bar(position = "fill") +
#'   labs(x = "Proportion")
"lizard_habitat"