This function sorts the item names according to instrument, domain, mode and number. The user can specify the sorting order.
sort_itemnames(x, order = "idnm")
order_itemnames(x, order = "idnm")A character vector containing item names (gsed lexicon)
A four-letter string specifying the sorting order.
The four letters are: i for instrument, d for domain,
m for mode and n for number. The default is
"idnm".
sort_itemnames() return a character vector with
length(x) sorted elements. order_itemnames() return
an integer vector of length length(x) with positions of
the sorted elements.
itemnames <- c("aqigmc028", "grihsd219", "", "by1mdd157", "mdsgmd006")
sort_itemnames(itemnames)
#> [1] "" "aqigmc028" "by1mdd157" "grihsd219" "mdsgmd006"