Nothing
#' Mammal sleep data
#'
#' Dataset from Allison and Cicchetti (1976) of 62 mammal species on the
#' interrelationship between sleep, ecological, and constitutional variables.
#' The dataset contains missing values on five variables.
#'
#' Allison and Cicchetti (1976) investigated the interrelationship between
#' sleep, ecological, and constitutional variables. They assessed these
#' variables for 39 mammalian species. The authors concluded that slow-wave
#' sleep is negatively associated with a factor related to body size. This
#' suggests that large amounts of this sleep phase are disadvantageous in large
#' species. Also, paradoxical sleep (REM sleep) was associated with a factor
#' related to predatory danger, suggesting that large amounts of this sleep
#' phase are disadvantageous in prey species.
#'
#' @name mammalsleep
#' @aliases mammalsleep sleep
#' @docType data
#' @format \code{mammalsleep} is a data frame with 62 rows and 11 columns:
#' \describe{
#' \item{species}{Species of animal}
#' \item{bw}{Body weight (kg)}
#' \item{brw}{Brain weight (g)}
#' \item{sws}{Slow wave ("nondreaming") sleep (hrs/day)}
#' \item{ps}{Paradoxical ("dreaming") sleep (hrs/day)}
#' \item{ts}{Total sleep (hrs/day) (sum of slow wave and paradoxical sleep)}
#' \item{mls}{Maximum life span (years)}
#' \item{gt}{Gestation time (days)}
#' \item{pi}{Predation index (1-5), 1 = least likely to be preyed upon}
#' \item{sei}{Sleep exposure index (1-5), 1 = least exposed (e.g. animal sleeps in a
#' well-protected den), 5 = most exposed}
#' \item{odi}{Overall danger index (1-5) based on the above two indices and other information, 1 = least
#' danger (from other animals), 5 = most danger (from other animals)}
#' }
#' @source Allison, T., Cicchetti, D.V. (1976). Sleep in Mammals: Ecological and
#' Constitutional Correlates. Science, 194(4266), 732-734.
#' @keywords datasets
#' @examples
#' sleep <- data(mammalsleep)
NULL
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.