testpackage: Makes working with factors easy

#' Timeseries of chlorophyll inventory data.
#'
#' Integrated chlorophyll concentration over 0-100m layer for individual
#'  profiles collected at Halifax-2 station.
#'
#' @format A data frame with four variables: \code{year}, \code{month},
#'   \code{day}, and \code{chlorophyll_0_100}. Chlorophyll inventory units
#'   are mg chl/m2.
"Chlorophyll_Inventory_Timeseries_HL2"


#' Timeseries of nitrate inventory data.
#'
#' Integrated nitrate concentration over 0-50m and 50-150m surface layer for individual
#'  profiles collected at Halifax-2 station.
#'
#' @format A data frame with five variables: \code{year}, \code{month},
#'   \code{day}, \code{nitrate_0_50}, and \code{nitrate_50_150}. Nitrate inventory
#'   units are mmol N/m2.
"Nitrate_Inventory_Timeseries_HL2"