R/data.R

#' @title Growth of Cable TV Industriy
#'
#' @description This data shows the Cable TV adoption 1952-1989.
#' @name CATV
#' @docType data
#' @usage CATV
#' @format dataframe with two variables:
#' \describe{
#' \item{year}{year}
#' \item{CATV}{Cable TV cumulative adoption}}
#' @references  J. P. Martino, Technological forecasting for decision making. McGraw-Hill, Inc., 1993.
#' @keywords datasets
NULL

#' @title Power-Generation Efficiency of Public Utilities
#'
#' @description This data shows the efficiency improvement 1920 - 1987.
#' @name PE
#' @docType data
#' @usage PE
#' @format dataframe with two variables:
#' \describe{
#' \item{year}{year}
#' \item{Kwhperc}{Kilowatt.hours per pound of coal}}
#' @references  J. P. Martino, Technological forecasting for decision making. McGraw-Hill, Inc., 1993.
#' @keywords datasets
NULL
nchaichi/TF documentation built on May 12, 2019, 7:21 p.m.