[julia-users] Finding duplicit elements in an iterable

[Ján Dolinský]

Hi,

I am trying to find all duplicates in an iterable collection e.g. of 
strings.

A = String["a", "b", "c", "a", "d", "b"]

Function unique(A) will return the unique elements. How can I find the 
remaining duplicates ? I tried setdiff(A, unique(A)) but it works in a 
different way.

Thanks ,
Jan