Take a function which inputs a set, set of sets, collection, nested vector with collections buried within, etc. So, the inputs sometimes are not of the same type. How would one go about converting such input into a nested vector structure? In the first case of just a set, I would use
(into [] #{1 2 3 4})
converting the into into a vector. But the case of sets within sets, I am unable to output nested vectors, i.e.
#{1 2 3 #{1 2 3}}
Similarly, I might have an input such as
[1 2 3 (4 5 6)]
and I want to output
[1 2 3 [4 5 6]]
The idea is that sometimes I need to go within the depth and pick out a collection or set to turn into a vector. Is it possible to have a function, which in general can handle the many different structural inputs and output a nested vector structure. Namely can a function generalize the aforementioned examples? I simplified the samples somewhat, for instance I might have inputs such as
[[[1 2 3 4] [#{1 2 3 4} 2 3 4] [(1 2 3 4) 2 3 4]]]
To give more insight into the function I am trying to work on consider the function C from the language R. The importance of this function lies in the importance of vector structures within statistics/data analysis.
user=> (use 'clojure.walk)
user=> (clojure.walk/postwalk (fn [e] (if (coll? e) (vec e) e)) '(1 2 3 #{4 5 6 (7 8 9)}))
[1 2 3 [4 5 6 [7 8 9]]]