R/data_trees.R

In rTG: Methods to Analyse Seasonal Radial Tree Growth Data

#' data_trees
#'
#' A dataset with intra-seasonal radial tree growth data. It was collected in
#' three different years, at three sites, each with six trees. Please see
#' references for details.
#'
#' @format A data frame with 945 rows and 7 variables:
#' \describe{
#'   \item{Tissue}{XYLEM or PHLOEM}
#'   \item{Species}{Fagus sylvatica (FASY), Picea abies (PIAB), Quercus pubescens (QUPE)}
#'   \item{Site}{Panska reka (PAN), Karst (KRAS)}
#'   \item{Year}{2011, 2017}
#'   \item{Tree}{Tree ID indicators ranging from 1 to 6}
#'   \item{doy}{Day Of a Year}
#'   \item{width}{The total number of radial cells / the total ring width}
#' }
#' @source Gričar, J., Prislan, P., De Luis, M., Gryc, V., Hacurová, J.,
#' Vavrčík, H., Čufar, K., 2015. Plasticity in variation of xylem and phloem
#' cell characteristics of Norway spruce under different local conditions.
#' Frontiers in plant science 6, 730.
#' Gričar, J., Zavadlav, S., Jyske, T., Lavrič, M., Laakso, T., Hafner, P.,
#' Eler, K., Vodnik, D., 2019. Effect of soil water availability on intra-annual
#' xylem and phloem formation and non-structural carbohydrate pools in stem of
#' Quercus pubescens. Tree Physiol. 39, 222-233.
#' Prislan, P., Gričar, J., Čufar, K., de Luis, M., Merela, M., Rossi, S., 2019.
#' Growing season and radial growth predicted for Fagus sylvatica under climate
#' change. Clim. Change 153, 181-197.
#'
#' @export
"data_trees"