R/Plankton.R

In VSNC/VSN-EDU: VSN agridat

#' Abundance of types of plankton
#' 
#' The Plankton dataset contains data from a study of plankton numbers. Four types of plankton were sampled in 12 hauls. The hauls can be regarded as blocks. The types of plankton are the treatments.
#' @format 
#' \describe{A data frame with 48 observations on the following three variables:
#' 
#' \item{Haul}{a factor specifying the type of plankton.}
#' \item{Type}{a factor specifying whether fumigants have been to control nematodes. It has two levels, Not fumigated and fumigated.}
#' \item{Number}{a numerical vector recording the number of plankton.}
#' }
#' @source 
#' Snedecor, G.W. & Cochran, W.G. (1967) Statistical Methods (6th Edition), page 329.
"Plankton"