vsnc: Data and code in Agri

#' Effect effect of different additives on the octane level of gasoline
#' 
#' The Octane dataset contains data from an experiment to study the effect of different additives on the octane level of gasoline. There were five types of gasoline (A-E), and four observations on each.
#' @format 
#' \describe{A data frame with 20 observations on the following two variables:
#' \item{Octane}{a numerical vector recording the octane level of each gasoline sample.}
#' \item{Gasoline}{a factor specifying the additive used in each sample.}
#' }
#' @source 
#' John, P.W.M. (1971) Statistical Design and Analysis of Experiments, page 46.


#' 
"Octane"