R/data_grainproduct.R

In zhaoxue-xmu/RDA: Datasets, functions and examples from the book: R Data Analysis-Methods and Application (in chinese)by Kuangnan Fang et al

#'Dataset of grain production in chapter12
#'
#'A dataset containing year,Y,L,M,K 5 variables of 27 objects
#'
#'@format a dataframe with 27 rows and 5 variables
#'\describe{
#'  \item{year}{time}
#'  \item{Y}{output}
#'  \item{L}{labor population}
#'  \item{M}{area}
#'  \item{K}{chemical fertilizer}
#'}
"grainproduct"