help> setdiff INFO: Loading help data... Base.setdiff(s1, s2) Construct the set of elements in "s1" but not "s2". Maintains order with arrays. Note that both arguments must be collections, and both will be iterated over. In particular, "setdiff(set,element)" where "element" is a potential member of "set", will not work in general.
On Thursday, April 10, 2014 8:15:50 AM UTC-7, harven wrote: > > findin(*a*, *b*) returns the indices of elements in collection a that > appear in collection b.Is there a "notfindin" function that returns the > indices of elements in collection a that do not appear in collection b?If > not, what do you think of the idea of adding a keyword argument to > switch to the not found case? >
