В качестве справки для тех, кто может быть заинтересован в поиске помощи в R:
?read:delim #Access a functions help file
??base::delim #Search for "delim" in all help files for functions in base
help.search("delimited") #Search for "delimited" in all help files
RSiteSearch("Parsing Text") #Search for the term "Parsing Text" on the R site