.onLoad <- function(libname = find.package("ccdata"), pkgname = "ccdata") {
path <- find.package("ccdata")
env <- parent.env(environment())
# Assign ITEM_REF tables
utils::data("ITEM_REFTABLE", package="ccdata", envir=env)
ITEM_REF <- yaml.load_file(system.file("conf/ITEM_REF.yaml", package="ccdata"))
assign("ITEM_REF", ITEM_REF, envir=env)
icnarc <- read.csv(system.file('conf/icnarc_codes.csv', package="ccdata"))
surgical <- paste(icnarc$Condition, "(Surgical)")
names(surgical) <- icnarc$Surgical
nonsurgical <- paste(icnarc$Condition, "(Nonsurgical)")
names(nonsurgical) <- icnarc$Nonsurgical
assign("icnarc.dict", c(surgical, nonsurgical), envir=env)
unit.dict <- unlist(sapply(ccdata:::ITEM_REF, function(x) x$Units))
assign("unit.dict", unit.dict, envir=env)
# Build up short name / NIHR code / Classification conversion dictionary
reverse.name.value <- function(vec) {
new <- names(vec)
names(new) <- vec
return(new)
}
stname <- sapply(ITEM_REF, function(x) x$shortName)
meta <- paste0(stname, ".meta")
names(meta) <- paste0(names(stname), ".meta")
code2stname.dict <- c(stname, meta)
stname2code.dict <- reverse.name.value(code2stname.dict)
longnames <- sapply(ITEM_REF, function(x) x$dataItem)
stname2longname.dict <- longnames
names(stname2longname.dict) <- stname
#' classification dictionary: demographic, nurse, physiology, laboratory, drugs
class.dict_code <- sapply(ITEM_REF, function(x) x$Classification1)
class.dict_stname <- class.dict_code
names(class.dict_stname) <- as.character(code2stname.dict[class.dict_stname])
#' Time variable dictionary
tval.dict_code <- data.checklist$NHICdtCode != "NULL"
tval.dict_stname <- tval.dict_code
names(tval.dict_stname) <- as.character(data.checklist$NHICcode)
names(tval.dict_code) <- as.character(data.checklist$NHICcode)
assign("ITEM_REF" , ITEM_REF , envir=env)
assign("code2stname.dict" , code2stname.dict , envir=env)
assign("stname2code.dict" , stname2code.dict , envir=env)
assign("stname2longname.dict" , stname2longname.dict , envir=env)
assign("class.dict_code" , class.dict_code , envir=env)
assign("class.dict_stname", class.dict_stname, envir=env)
assign("tval.dict_code" , tval.dict_code , envir=env)
assign("tval.dict_stname" , tval.dict_stname , envir=env)
assign('checklist', extractIndexTable(), envir=env)
}
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