On 2010 Apr 12, at 10:48 PM, Glen Rubin wrote:
I am working with a collection of integer sequences ...(e.g.
coll:
((3 7 3 5 9 2 0 8 4 0 1 2323 4 11...) (243 4 664 478 3948...) (6 3 7 4
3335 2 4 5 7 6...)...)
I want to create an average sequence such that all of the first
elements are averaged, all of the second elements, etc....
However, I am unable to manipulate the collection. If I try something
simple like:
(map + coll)
I get java.lang.ClassCastException
Take a look at apply, it sounds as if you want something akin to:
(apply map + coll)
--Doug
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