#' Read van Ruijven et al. (2016) data.
#'
#' Read data from van Ruijven et al. 2016,
#' (http://dx.doi.org/10.1016/j.resconrec.2016.04.016,
#' https://www.zotero.org/groups/52011/rd3/items/itemKey/6QMNBEHQ), obtained
#' through personal communication (e-mail to Michaja Pehl). Units are tonnes
#' per year.
#'
#' @md
#' @return A [`magpie`][magclass::magclass] object.
#'
#' @author Michaja Pehl
#'
#' @importFrom dplyr filter mutate select
#' @importFrom magrittr %>%
#' @importFrom quitte add_countrycode_ madrat_mule
#' @importFrom readxl read_excel
#' @importFrom tidyr expand_grid pivot_longer
#'
#' @seealso [`readSource()`]
#' @export
readvanRuijven2016 <- function() {
USSR_iso3c <- c('ARM', 'AZE', 'BLR', 'EST', 'GEO', 'KAZ', 'KGZ', 'LTU',
'LVA', 'MDA', 'RUS', 'TJK', 'TKM', 'UKR', 'UZB')
x <- read_excel(
path = './Cement_data_from_Bas.xlsx',
# path = '~/PIK/swap/inputdata/sources/vanRuijven2016/Cement_data_from_Bas.xlsx',
sheet = 'Production',
range = 'A4:AS321') %>%
filter(999 != .data$`Region #`) %>%
pivot_longer(cols = matches('^[0-9]{4}$'), names_to = 'year',
names_transform = list(year = as.integer),
values_drop_na = TRUE) %>%
add_countrycode_(origin = c('FAO #' = 'fao'), destination = 'iso3c',
warn = FALSE) %>%
add_countrycode_(origin = c('FAO Name' = 'country.name'),
destination = c('iso3c.alt' = 'iso3c'), warn = FALSE)
# remove Soviet Republics if USSR is available, to avoid double counting
x %>%
anti_join(
expand_grid(iso3c = USSR_iso3c,
year = x %>%
filter('USSR' == .data$`FAO Name`) %>%
pull('year') %>%
unique()),
c('iso3c', 'year')
) %>%
mutate(iso3c = ifelse(!is.na(.data$iso3c), .data$iso3c, .data$iso3c.alt),
# kg * 0.001 t/kg = t
value = .data$value * 1e-3) %>%
filter(!is.na(.data$iso3c)) %>%
select('iso3c', 'year', 'value') %>%
madrat_mule()
}
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