r - Can ff object do this ff_object %in% ff_object? -


i have 2 ff objects , b (from package ff), integer list

   has 1656644 rows while b hase 202897 rows    want vector c <- %in% b

but c = logical(0)

is there way %in% operations fast 2 ff objects

use match() , %in% binary version of match().


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