R/haliotis.R

#' Age of Sea Snails?
#'
#' @description Subset of data from a study on sea snails of the
#' genus Haliotis. The age of a such a snail (in years) is quite 
#' close to the number of rings it has on its shell plus 1.5. The idea
#' is to predict the age of an individual sea snail from other
#' characteristics.  The rest of the data is witheld for evalution
#' purposes.
#' 
#' @details From the ICU website:  "The age of abalone is determined by 
#' cutting the shell through the cone, staining it, and counting the number of 
#' rings through a microscope -- a boring and time-consuming task.  
#' Other measurements, which are easier to obtain, are used to predict the age."
#' 
#'
#' @name haliotis
#' @docType data
#' @format A data frame with 2923 observations on the following 9 variables.
#' \describe{ 
#' \item{Type}{male, femal or infant}
#' \item{LongSh}{length of longest shell}
#' \item{Diam}{diameter}
#' \item{Height}{height}
#' \item{WhWt}{weight when whole}
#' \item{ShuckWt}{weight when shucked}
#' \item{ViscWt}{weight of the snail's viscera}
#' \item{ShellWt}{weight of the snails's shell}
#' \item{Age}{number of rings, plus 1.5}
#' }
#' @source  Dataset derived from the UCI Machine Learning Repository.  See
#' \url{http://archive.ics.uci.edu/ml/datasets/Abalone} for more information,
#' including a citation of the original research article.
#' @keywords datasets
#'
NA
homerhanumat/tigerData documentation built on Nov. 10, 2023, 5:30 p.m.