R/weightheight.R

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

#' Weight/height ratio and ages of boys.  
#'
#' Data from an observational study of the relationship between the weight/height ratio and ages of boys. 
#'
#' @format A data frame with 72 observations and two variables:
#' \describe{
#'    \item{ratio:}{weight/height ratio (lbs/in)}
#'    \item{age:}{age (months)}
#' }
#'
#' @note These data are originally from Eppright et al. (1972) and are featured in Gallant and Fuller (1973).
#'
#' @source Eppright, E. S., Fox, H. M., Fryer, B. A., Lamkin, G. H., Vivian, V. M., & Fuller, E. S. (1972). Nutrition of infants and preschool children in the north central region of the United States of America. \emph{World Review of Nutrition and Dietetics}, \emph{14}, 269--332.
#' 
#' Gallant, A. R. & Fuller, W. A. (1973). Fitting segmented polynomial regression models whose joint points have to be estimated. \emph{Journal of the American Statistical Association}, \emph{68}, 144--147.
"weightheight"