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authorJohannes Ranke <jranke@uni-bremen.de>2016-09-27 23:00:48 +0200
committerJohannes Ranke <jranke@uni-bremen.de>2016-09-27 23:00:48 +0200
commit12a31f4c130c551f82232d9ef7dfb608bd52c53f (patch)
tree2525ab1ea4102a6edddbd0c2f03f4a851bf2f9c5 /pkg/R/drift_data_JKI.R
parent0d958ab6f84b569b5437f231c56004890c4ae23b (diff)
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-#' Deposition from spray drift expressed as percent of the applied dose as
-#' published by the JKI
-#'
-#' Deposition from spray drift expressed as percent of the applied dose as
-#' published by the German Julius-Kühn Institute (JKI).
-#'
-#' The data were extracted from the spreadsheet cited below using the R code
-#' given in the example section. The spreadsheet is not included in the package
-#' as its licence is not clear.
-#'
-#'
-#' @name drift_data_JKI
-#' @docType data
-#' @format A list currently containing matrices with spray drift percentage
-#' data for field crops (Ackerbau), and Pome/stone fruit, early and late
-#' (Obstbau frueh, spaet).
-#' @source JKI (2010) Spreadsheet 'Tabelle der Abdrifteckwerte.xls', retrieved
-#' from
-#' http://www.jki.bund.de/no_cache/de/startseite/institute/anwendungstechnik/abdrift-eckwerte.html
-#' on 2015-06-11
-#' @keywords datasets
-#' @examples
-#'
-#' \dontrun{
-#' # This is the code that was used to extract the data
-#' library(readxl)
-#' abdrift_path <- "inst/extdata/Tabelle der Abdrifteckwerte.xls"
-#' JKI_crops <- c("Ackerbau", "Obstbau frueh", "Obstbau spaet")
-#' names(JKI_crops) <- c("Field crops", "Pome/stone fruit, early", "Pome/stone fruit, late")
-#' drift_data_JKI <- list()
-#'
-#' for (n in 1:8) {
-#' drift_data_raw <- read_excel(abdrift_path, sheet = n + 1, skip = 2)
-#' drift_data <- as.matrix(drift_data_raw[1:9, 2:4])
-#' dimnames(drift_data) <- list(distance = as.integer(drift_data_raw[1:9, 1]),
-#' crop = JKI_crops)
-#' drift_data_JKI[[n]] <- drift_data
-#' }
-#' save(drift_data_JKI, file = "data/drift_data_JKI.RData")
-#' }
-#'
-#' # And this is the resulting data
-#' drift_data_JKI
-NULL

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