SASのSPEDIS関数は次のようにコストを計算します(例):
例
data words;
input Operation $ Query $ Keyword $;
Distance = spedis(query,keyword);
Cost = distance * length(query);
datalines;
match fuzzy fuzzy
singlet fuzy fuzzy
doublet fuuzzy fuzzy
swap fzuzy fuzzy
truncate fuzz fuzzy
append fuzzys fuzzy
delete fzzy fuzzy
insert fluzzy fuzzy
replace fizzy fuzzy
firstdel uzzy fuzzy
firstins pfuzzy fuzzy
firstrep wuzzy fuzzy
several floozy fuzzy
;
proc print data = words;
run;
まったく同じことをするR関数を探しています。助けが必要。